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Chen J, Li J, Nedelcu G, Hansch P, Di Mario L, Protesescu L, Loi MA. Blade-coated perovskite nanoplatelet polymer composites for sky-blue light-emitting diodes. JOURNAL OF MATERIALS CHEMISTRY. C 2024; 12:13847-13853. [PMID: 39144138 PMCID: PMC11318649 DOI: 10.1039/d4tc02404d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2024] [Accepted: 07/29/2024] [Indexed: 08/16/2024]
Abstract
Colloidal perovskite nanoplatelets (NPLs) have shown promise in tackling blue light-emitting diode challenges based on their tunable band gap and high photoluminescence efficiencies. However, high quality and large area dense NPL films have been proven to be very hard to prepare because of their chemical and physical fragility during the liquid phase deposition. Herein, we report a perovskite-polymer composite film deposition strategy with fine morphology engineering obtained using the blade coating method. The effects of the polymer type, solution concentration, compounding ratio and film thickness on the film quality are systematically investigated. We found that a relatively high-concentration suspension with an optimized NPL to polymer ratio of 1 : 2 is crucial for the suppression of phase separation and arriving at a uniform film. Finally, sky-blue NPL-based perovskite light-emitting diodes were fabricated by blade coating showing an EQE of 0.12% on a device area of 16 mm2.
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Affiliation(s)
- Jiale Chen
- Photophysics & OptoElectronics, Zernike Institute for Advanced Materials, University of Groningen Nijenborgh 3 9747AG Groningen The Netherlands
| | - Jiaxiong Li
- Photophysics & OptoElectronics, Zernike Institute for Advanced Materials, University of Groningen Nijenborgh 3 9747AG Groningen The Netherlands
| | - Georgian Nedelcu
- Materials Chemistry, Zernike Institute for Advanced Materials, University of Groningen Nijenborgh 3 9747AG Groningen The Netherlands
| | - Paul Hansch
- Photophysics & OptoElectronics, Zernike Institute for Advanced Materials, University of Groningen Nijenborgh 3 9747AG Groningen The Netherlands
| | - Lorenzo Di Mario
- Photophysics & OptoElectronics, Zernike Institute for Advanced Materials, University of Groningen Nijenborgh 3 9747AG Groningen The Netherlands
| | - Loredana Protesescu
- Materials Chemistry, Zernike Institute for Advanced Materials, University of Groningen Nijenborgh 3 9747AG Groningen The Netherlands
| | - Maria A Loi
- Photophysics & OptoElectronics, Zernike Institute for Advanced Materials, University of Groningen Nijenborgh 3 9747AG Groningen The Netherlands
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2
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Yin Q, Xu R, Wang X, Li M, Huang X, Chen Z, Ma T, Xie A, Chen J, Zeng H. Precise Laser-Modulated Anion Exchange on Ultraflexible Perovskite Films for Multicolor Patterns. ACS APPLIED MATERIALS & INTERFACES 2024; 16:48094-48102. [PMID: 39189509 DOI: 10.1021/acsami.4c09606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/28/2024]
Abstract
Lead halide perovskite anion exchange reactions tend to be spontaneous and rapid. To achieve precise control of anion exchange and modulate the bandgaps of perovskites to meet the demands in full-color displays, a laser-induced liquid-phase anion exchange method is developed in this paper. CsPbBr3 perovskites embedded in a polymer matrix are converted to CsPb(BrxCl1-x)3 and CsPb(BrxI1-x)3 perovskites, realizing the shift from green fluorescence to blue and red fluorescence. By changing the laser parameters, the anion exchange extent and luminescence wavelength are precisely tuned, with the maximum tuning wavelength range of 431-696 nm. Due to the focusing properties of the laser, the spatial position of anion exchange can be precisely controlled, which is significant for realizing fast and accurate patterning without masks. Based on this method, blue patterns with different light-emitting wavelengths are fabricated. RGB three-color patterns on a single perovskite composite film are successfully prepared by further replacement of halogen ions. More importantly, the polymer matrix provides ultraflexibility and good stability for the films; even if the composite films are arbitrarily folded or repeatedly bent, they can still maintain good luminous intensity. This method will show great potential in the field of flexible, full-color displays.
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Affiliation(s)
- Qianxi Yin
- Institute of Optoelectronics and Nanomaterials, MIIT Key Laboratory of Advanced Display Materials and Devices, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Rongrong Xu
- Institute of Optoelectronics and Nanomaterials, MIIT Key Laboratory of Advanced Display Materials and Devices, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Xiaoting Wang
- Institute of Optoelectronics and Nanomaterials, MIIT Key Laboratory of Advanced Display Materials and Devices, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Mulin Li
- Institute of Optoelectronics and Nanomaterials, MIIT Key Laboratory of Advanced Display Materials and Devices, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Xianliang Huang
- Institute of Optoelectronics and Nanomaterials, MIIT Key Laboratory of Advanced Display Materials and Devices, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
- School of Physics, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Ziyi Chen
- Institute of Optoelectronics and Nanomaterials, MIIT Key Laboratory of Advanced Display Materials and Devices, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
- School of Physics, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Teng Ma
- Institute of Optoelectronics and Nanomaterials, MIIT Key Laboratory of Advanced Display Materials and Devices, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
- School of Physics, Nanjing University of Science and Technology, Nanjing 210094, China
| | - An Xie
- Key Laboratory of Functional Materials and Applications of Fujian Province, School of Materials Science and Engineering, Xiamen University of Technology, Xiamen 361024, P. R. China
| | - Jun Chen
- Institute of Optoelectronics and Nanomaterials, MIIT Key Laboratory of Advanced Display Materials and Devices, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Haibo Zeng
- Institute of Optoelectronics and Nanomaterials, MIIT Key Laboratory of Advanced Display Materials and Devices, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
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Jayaprakash Saiji S, Tang Y, Wu ST, Stand L, Tratsiak Y, Dong Y. Metal halide perovskite polymer composites for indirect X-ray detection. NANOSCALE 2024. [PMID: 39248411 DOI: 10.1039/d4nr02716g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/10/2024]
Abstract
Metal halide perovskites (MHPs) have emerged as a promising class of materials for radiation detection due to their high atomic numbers and thus high radiation absorption, tunable and efficient luminescent properties and simple solution processability. Traditional MHP scintillators, however, suffer from environmental degradation, spurring interest in perovskite-polymer composites. This paper reviews recent developments in these composites tailored for scintillator applications. It discusses various synthesis methods, including solution-based and mechanochemical techniques, that enable the formation of composites with enhanced performance metrics such as light yield, detection limit, and environmental stability. The review also covers the remaining challenges and opportunities in fabrication techniques and performance metric evaluations of this class of materials. By offering a comprehensive overview of current research and future perspectives, this paper underscores the potential of perovskite-polymer composites to revolutionize the field of radiation detection.
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Affiliation(s)
- Shruti Jayaprakash Saiji
- NanoScience Technology Center, Department of Materials Science and Engineering, University of Central Florida, Orlando, Florida, 32826, USA.
- College of Optics and Photonics, University of Central Florida, Orlando, Florida, 32826, USA
| | - Yiteng Tang
- NanoScience Technology Center, Department of Materials Science and Engineering, University of Central Florida, Orlando, Florida, 32826, USA.
| | - Shin-Tson Wu
- College of Optics and Photonics, University of Central Florida, Orlando, Florida, 32826, USA
| | - Luis Stand
- Scintillation Materials Research Center, University of Tennessee, Knoxville, Tennessee, USA
| | - Yauhen Tratsiak
- Scintillation Materials Research Center, University of Tennessee, Knoxville, Tennessee, USA
| | - Yajie Dong
- NanoScience Technology Center, Department of Materials Science and Engineering, University of Central Florida, Orlando, Florida, 32826, USA.
- College of Optics and Photonics, University of Central Florida, Orlando, Florida, 32826, USA
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Xuan W, Fang Y, Teng S, Huang S, Zou L, Gao S, Cheng Y, Zheng L. In situ fabrication of porous polymer films embedded with perovskite nanocrystals for flexible superhydrophobic piezoresistive sensors. J Colloid Interface Sci 2024; 669:358-365. [PMID: 38718589 DOI: 10.1016/j.jcis.2024.04.140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 04/10/2024] [Accepted: 04/20/2024] [Indexed: 05/27/2024]
Abstract
The application of pressure sensors based on perovskite in high-humidity environments is limited by the effect of water on their stability. Endowing sensors with superhydrophobicity is an effective strategy to overcome the issue. In this work, MAPbBr3/Polyvinylidene Fluoride-TFSI composite was prepared by a one-step in-situ strategy to form a flexible superhydrophobic pressure sensor, which exhibited a contact angle of 150.25°. The obtained sensor exhibited a sensitivity of 0.916 in 1 kPa, a detection limit of 0.2 Pa, a precision of 0.1 Pa, and a response/recovery of ∼100 ms, along with good thermal stability. Through density functional theory calculations, it is revealed that the formation of the porosity is attributed to the interaction between the polymer and EMIM TFSI, which further leads to superhydrophobicity. And, the perovskite structure is easy to change under pressure, affecting the carrier transport and electrical signals output, which explains the sensing mechanism. In addition, the sensor performed well in monitoring facial expression, pulse, respiration, finger bending, and wind speed ranging from 1 m/s to 6 m/s. With both the Linear Regression and the Random Forest algorithm, the sensor can monitor the wind speed with an R2 greater than 0.977 in 60 tests.
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Affiliation(s)
- Wufan Xuan
- Jiangsu Engineering Research Center for Dust Control and Occupational Protection, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China; School of Safety Engineering, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China
| | - Yuan Fang
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China
| | - Shuhua Teng
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China
| | - Sheng Huang
- Jiangsu Engineering Research Center for Dust Control and Occupational Protection, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China; School of Safety Engineering, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China; School of Materials Science and Physics, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China
| | - Liang Zou
- Jiangsu Engineering Research Center for Dust Control and Occupational Protection, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China; School of Safety Engineering, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China
| | - ShaSha Gao
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China
| | - Yongchao Cheng
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China
| | - Lina Zheng
- Jiangsu Engineering Research Center for Dust Control and Occupational Protection, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China; School of Safety Engineering, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China.
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5
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Bera S, Tripathi A, Titus T, Sethi NM, Das R, Afreen, Adarsh KV, Thomas KG, Pradhan N. CsPbBr 3 Perovskite Crack Platelet Nanocrystals and Their Biexciton Generation. J Am Chem Soc 2024; 146:20300-20311. [PMID: 39005055 DOI: 10.1021/jacs.4c05803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/16/2024]
Abstract
Lead halide perovskite nanocrystals have been extensively studied in recent years as efficient optical materials for their bright and color-tunable emissions. However, these are mostly confined to their 3D nanocrystals and limited to the anisotropic nanostructures. By exploring the Cs-sublattice-induced metal(II) ion exchange with Pb(II), crack CsPbBr3 perovskite platelet nanocrystals having polar surfaces in all three directions are reported here, which remained different than reported standard square platelets. The crack platelets are also passivated with halides to enhance their brightness. Further, as these crack and passivated crack platelets have defects and polar surfaces, the exciton and biexciton generation in these platelets is investigated using femtosecond photoluminescence and transient absorption measurement at ambient as well as cryogenic temperatures, correlated with time-resolved single-particle photoluminescence spectroscopy, and compared with standard square platelets having nonpolar facets. These investigations revealed that the crack platelets and passivated crack platelets possess enhanced biexciton emission compared to square platelets due to the presence of polar surfaces in all three directions. These results provide insights into not only the design of the anisotropic nanostructures of ionic nanocrystals but also the possibility of tuning the single exciton to biexciton generation efficiency, which has potential applications in optoelectronic systems.
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Affiliation(s)
- Suman Bera
- School of Materials Sciences, Indian Association for the Cultivation of Science, Kolkata, West Bengal 700032, India
| | - Akash Tripathi
- Department of Physics, Indian Institute of Science Education and Research, Bhopal, Madhya Pradesh 462066, India
| | - Timi Titus
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Thiruvananthapuram, Kerala 695551, India
| | - Nilesh Monohar Sethi
- School of Materials Sciences, Indian Association for the Cultivation of Science, Kolkata, West Bengal 700032, India
| | - Rajdeep Das
- School of Materials Sciences, Indian Association for the Cultivation of Science, Kolkata, West Bengal 700032, India
| | - Afreen
- Department of Physics, Indian Institute of Science Education and Research, Bhopal, Madhya Pradesh 462066, India
| | - K V Adarsh
- Department of Physics, Indian Institute of Science Education and Research, Bhopal, Madhya Pradesh 462066, India
| | - K George Thomas
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Thiruvananthapuram, Kerala 695551, India
| | - Narayan Pradhan
- School of Materials Sciences, Indian Association for the Cultivation of Science, Kolkata, West Bengal 700032, India
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6
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Xu C, Dai F, Zhang M, Zhang J, Tao Y, Zhai Y, He W, Chen Q. Ultraviolet color image sensor based on CsPbBr 3 inorganic perovskite nanocrystal film. OPTICS LETTERS 2024; 49:3982-3985. [PMID: 39008758 DOI: 10.1364/ol.530039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Accepted: 06/18/2024] [Indexed: 07/17/2024]
Abstract
Ultraviolet and color imaging require different image sensors and optical channels, which results in large size, complex structure, and high cost of imaging systems. Here, we report a novel, to the best of our knowledge, image sensor that combines ultraviolet and color imaging functions. The fabrication of this image sensor is achieved by coating high-transparency CsPbBr3 perovskite nanocrystals in a polymer film on the color filter layer of a silicon-based detector. The film, serving as an ultraviolet photoluminescent layer, exhibits high transparency, exceeding 91.5% at wavelengths beyond the photoluminescence peak of 513 nm. During ultraviolet imaging, the film converts ultraviolet light into visible light, which passes through the green filter layer to reach the detector for imaging. During visible light imaging, red light, green light, and most of the blue light pass through the CsPbBr3 perovskite nanocrystal film and color filter layer to reach the detector for imaging. As a result, the image sensor can capture both 257 nm solar-blind ultraviolet images and color photos in the visible light.
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7
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Zhang R, Yan A, Liu H, Lv Z, Hong M, Qin Z, Ren W, Jiang Z, Li M, Ho JC, Guo P. Biocompatible Perovskite Nanocrystals with Enhanced Stability for White Light-Emitting Diodes. ACS APPLIED MATERIALS & INTERFACES 2024; 16:34167-34180. [PMID: 38896470 DOI: 10.1021/acsami.4c06854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
Recently emerged lead halide perovskite CsPbX3 (X = Cl, Br, and I) nanocrystals (PNCs) have attracted tremendous attention due to their excellent optical properties. However, the poor water stability, unsatisfactory luminescence efficiency, disappointing lead leakage, and toxicity have restricted their practical applications in photoelectronics and biomedical fields. Herein, a controllable encapsulated strategy is investigated to realize CsPbX3 PNCs/PVP @PMMA composites with superior luminescence properties and excellent biocompatibility. Additionally, the synthesized CsPbBr3 and CsPbBr0.6I2.4 PNCs/PVP@PMMA structures exhibit green and red emissions with a maximal photoluminescence quantum yield (PLQY) of about 70.24% and 98.26%, respectively. These CsPbX3 PNCs/PVP@PMMA structures show high emission efficiency, excellent stability after water storage for 18 months, and low cytotoxicity at the PNC concentration at 500 μg mL-1. Moreover, white light-emitting diode (WLED) devices based on mixtures of CsPbBr3 and CsPbBr0.6I2.4 PNCs/PVP@PMMA perovskite structures are investigated, which exhibit excellent warm-white light emissions at room temperature. A flexible manipulation method is used to fabricate the white light emitters based on these perovskite composites, providing a fantastic platform for fabricating solid-state white light sources and full-color displays.
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Affiliation(s)
- Rui Zhang
- Department of Physics, Taiyuan University of Science and Technology, Taiyuan 030024, China
| | - Ao Yan
- Department of Physics, Taiyuan University of Science and Technology, Taiyuan 030024, China
| | - Haiyun Liu
- Department of Physics, Taiyuan University of Science and Technology, Taiyuan 030024, China
| | - Zehua Lv
- Department of Physics, Taiyuan University of Science and Technology, Taiyuan 030024, China
| | - Mengqing Hong
- The Institute of Technological Sciences, Wuhan University, Wuhan 430072, China
| | - Zhenxing Qin
- Department of Physics, Taiyuan University of Science and Technology, Taiyuan 030024, China
| | - Weijie Ren
- Department of Physics, Taiyuan University of Science and Technology, Taiyuan 030024, China
| | - Zhaoyi Jiang
- Department of Physics, Taiyuan University of Science and Technology, Taiyuan 030024, China
| | - Mingkai Li
- School of Materials Science and Engineering, Hubei University, Wuhan 430062, China
| | - Johnny C Ho
- Department of Materials Science and Engineering and State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong, Hong Kong 999077, SAR, China
| | - Pengfei Guo
- Department of Materials Science and Engineering and State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong, Hong Kong 999077, SAR, China
- College of Electronic Information and Optical Engineering, Taiyuan University of Technology, Taiyuan 030024, China
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Li J, Jiang J, Zhang Y, Lin Z, Pang Z, Guan J, Liu Z, Ren Y, Li S, Lin R, Wu J, Wang J, Zhang Z, Dong H, Chen Z, Wang Y, Yang Y, Tan H, Zhu J, Lu Z, Deng Y. Freeze Metal Halide Perovskite for Dramatic Laser Tuning: Direct Observation via In Situ Cryo-Electron Microscope. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2402338. [PMID: 38924259 DOI: 10.1002/smll.202402338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2024] [Revised: 06/10/2024] [Indexed: 06/28/2024]
Abstract
A frozen-temperature (below -28 °C) laser tuning way is developed to optimize metal halide perovskite (MHP)'s stability and opto-electronic properties, for emitter, photovoltaic and detector applications. Here freezing can adjust the competitive laser irradiation effects between damaging and annealing/repairing. And the ligand shells on MHP surface, which are widely present for many MHP materials, can be frozen and act as transparent solid templates for MHP's re-crystallization/re-growth during the laser tuning. With model samples of different types of CsPbBr3 nanocube arrays,an attempt is made to turn the dominant exposure facet from low-energy [100] facet to high-energy [111], [-211], [113] and [210] ones respectively; selectively removing the surface impurities and defects of CsPbBr3 nanocubes to enhance the irradiation durability by 101 times; and quickly (tens of seconds) modifying a Ruddlesden-Popper (RP) boundary into another type of boundary like twinning, and so on. The laser tuning mechanism is revealed by an innovative in situ cryo-transmission electron microscope (cryo-TEM) exploration at atomic resolution.
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Affiliation(s)
- Jiayi Li
- National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Science and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, 999077, China
| | - Jing Jiang
- National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Science and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
| | - Yuchen Zhang
- National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Science and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
| | - Zhenhui Lin
- National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Science and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
| | - Zhentao Pang
- National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Science and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
| | - Jie Guan
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Zhiyu Liu
- National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Science and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
| | - Yifeng Ren
- National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Science and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
| | - Shiheng Li
- National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Science and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
| | - Renxing Lin
- National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Science and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
| | - Jie Wu
- National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Science and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
- Center for High Pressure Science and Technology Advanced Research, Shanghai, 201203, China
| | - Jian Wang
- National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Science and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
| | - Ziyou Zhang
- Center for High Pressure Science and Technology Advanced Research, Shanghai, 201203, China
| | - Hongliang Dong
- Center for High Pressure Science and Technology Advanced Research, Shanghai, 201203, China
| | - Zhiqiang Chen
- Center for High Pressure Science and Technology Advanced Research, Shanghai, 201203, China
| | - Yuanyuan Wang
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Yurong Yang
- National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Science and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
| | - Hairen Tan
- National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Science and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
| | - Jia Zhu
- National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Science and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
| | - Zhenda Lu
- National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Science and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
| | - Yu Deng
- National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Science and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
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9
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Fang H, Yin Y, Chen Z, Zhu W, Yang YM, Zhu H, Tian W, Jin S. Excited State Dynamics and Transport of Self-Trapped Excitons in Bi-Doped Cs 2Na 0.4Ag 0.6In (1-y)Bi yCl 6 Double Perovskites. J Phys Chem Lett 2024; 15:6194-6201. [PMID: 38836753 DOI: 10.1021/acs.jpclett.4c01232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2024]
Abstract
Lead-free double perovskites (DPs) have become notable in white light emission applications due to the self-trapped exciton (STE) formation in the excited state. However, the mechanism understanding of the excited state dynamics and transport of STE remains ambiguous. Here, we demonstrate a new STE (Bi-STE) forming in tiny Bi-doped Cs2Na0.4Ag0.6InCl6, alongside its intrinsic STE (i-STE), resulting in the DPs photoluminescence quantum yield (PLQY) increasing to as high as >90%. The i-STE exhibits faster formation (60 fs) and slower relaxation dynamics (2.8 μs) compared to the Bi-STE. Moreover, we unveil that the Bi doping can augment the i-STE diffusion properties to attain a diffusion coefficient (diffusion length) of 0.012 cm2 s-1 (1.7 μm) at room temperature, indicating their promise in photovoltaic applications. Our results shed light on significant STE dynamics and transport mechanisms in DPs, providing a new roadmap for advancing existing and crafting new DPs in light emission applications.
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Affiliation(s)
- Hui Fang
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Yanfeng Yin
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Zeng Chen
- Center for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027, China
| | - Wenjuan Zhu
- College of Electronic and Optical Engineering and College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications, Nanjing 210023, P. R. China
| | - Yang Michael Yang
- State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, International Research Center for Advanced Photonics, Zhejiang University, Hangzhou, Zhejiang 310027, China
| | - Haiming Zhu
- Center for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027, China
| | - Wenming Tian
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Shengye Jin
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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10
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Hao X, Nie L, Zhu X, Zeng G, Liu C, Teng Z, Liu H, Yue Y, Yu X, Wang T. High-Resolution X-ray Image from Copper-Based Perovskite Hybrid Polymer. ACS APPLIED MATERIALS & INTERFACES 2024; 16:29210-29216. [PMID: 38770774 DOI: 10.1021/acsami.4c03401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
Cs3Cu2I5 nanocrystals (NCs) are considered to be promising materials due to their high photoluminescence efficiency, lack of lead toxicity, and X-ray responsiveness. However, during the crystallization process, NCs are prone to agglomeration and exhibit uneven size distribution, resulting in several light scattering that severely affect their imaging resolution. Herein, we successfully developed a high-resolution scintillator film by growing copper-based perovskite NCs within a hybrid polymer matrix. By leveraging the ingenious integration of polyvinylidene fluoride (PVDF) and polymethyl methacrylate (PMMA), the size and distribution uniformity of Cs3Cu2I5 NCs can be effectively controlled. Consequently, a high spatial resolution of 14.3 lp mm-1 and a low detection limit of 105 nGy s-1 are achieved, and the scintillator film has excellent flexibility and stability. These results highlight the promising application of Cs3Cu2I5 scintillator films in low-cost, flexible, and high-performance medical imaging.
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Affiliation(s)
- Xue Hao
- College of Materials and Chemistry and Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China
| | - Lin Nie
- College of Materials and Chemistry and Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China
| | - Xuanyu Zhu
- College of Materials and Chemistry and Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China
| | - Guoqiang Zeng
- Nuclear Technology Key Laboratory of Earth Science, Chengdu University of Technology, Chengdu 610059, China
| | - Chunhai Liu
- College of Materials and Chemistry and Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China
| | - Zhaowei Teng
- Second Affiliated Hospital, Kunming Medical University, Kunming 650500, China
| | - Haozhe Liu
- College of Materials and Chemistry and Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China
| | - Yang Yue
- School of Mechanical Engineering, Institute for Advanced Materials, Deformation and Damage from Multi-Scale, Chengdu University, Chengdu 610106, China
| | - Xue Yu
- School of Mechanical Engineering, Institute for Advanced Materials, Deformation and Damage from Multi-Scale, Chengdu University, Chengdu 610106, China
| | - Ting Wang
- College of Materials and Chemistry and Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China
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11
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Zhong J, Ge M, Gu T, Wang T, Liu Z, Bai P. Ultra-stable and highly-bright CsPbBr 3 perovskite/silica nanocomposites for miRNA detection based on digital single-nanoparticle counting. Talanta 2024; 273:125903. [PMID: 38503120 DOI: 10.1016/j.talanta.2024.125903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 02/21/2024] [Accepted: 03/09/2024] [Indexed: 03/21/2024]
Abstract
Single-nanoparticle counting (SNPC) based on fluorescent tag (FT) stands out for its capacity to achieve amplification-free and sensitive detection of biomarkers. The stability and luminescence of FT are important to the sensitivity and reliability of SPNC. In this work, we developed novel perovskite/silica nanocomposites by in-situ nanoconfined growth of CsPbBr3 nanocrystals inside mesoporous structure of silica nanoparticles. PbBr(OH) was formed in an alkaline-assisted reaction triggered by water on the surface of CsPbBr3 nanocrystals. The as-obtained nanocomposites, featuring dual protection from silica matrix and PbBr(OH), exhibited high absolute photoluminescence quantum yield (PLQY) of 86.5% and demonstrated outstanding PL stability confronting with water, heat, ultrasound and UV-irradiation, which is desired by SNPC-based biosensor. Thereafter, these nanocomposites were used to construct an operationally friendly SNPC assay for the amplification-free quantification of cancer-associated miRNA. Quantitative detection of miRNA could be accomplished by directly counting the number of nanocomposites using a flow cytometer in this assay. This strategy did not ask for multiple washing steps and demonstrated specific and sensitive detection of miRNA 21, which exhibited a dynamic range of 1-1000 pM and limit of detection of 79 amol. The employment of highly stable perovskite/silica nanocomposites improved the test reliability and stability of SNPC, revealing the vast potential of perovskites in biosensing.
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Affiliation(s)
- Jiajun Zhong
- Jihua Laboratory, No. 28 Island Ring South Road, Guicheng Street, Nanhai District, Foshan, Guangdong, 528200, People's Republic of China
| | - Minghao Ge
- Jihua Laboratory, No. 28 Island Ring South Road, Guicheng Street, Nanhai District, Foshan, Guangdong, 528200, People's Republic of China
| | - Tongxu Gu
- Jihua Laboratory, No. 28 Island Ring South Road, Guicheng Street, Nanhai District, Foshan, Guangdong, 528200, People's Republic of China.
| | - Tong Wang
- Jihua Laboratory, No. 28 Island Ring South Road, Guicheng Street, Nanhai District, Foshan, Guangdong, 528200, People's Republic of China; CAS Key Lab of Bio-medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, Jiangsu, 215163, People's Republic of China
| | - Zhizhou Liu
- CAS Key Lab of Bio-medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, Jiangsu, 215163, People's Republic of China
| | - Pengli Bai
- Jihua Laboratory, No. 28 Island Ring South Road, Guicheng Street, Nanhai District, Foshan, Guangdong, 528200, People's Republic of China; CAS Key Lab of Bio-medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, Jiangsu, 215163, People's Republic of China.
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12
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Teng H, Ma L, Cui C, Li Z, Chen K, Ming X, Guo Y, Zhang Q, Ge Z, Cheng Y, Pan A, Zhang Y. Luminescent Perovskite-Cross-Linked Polymer with Low Shrinkage and Excellent Stability. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38685579 DOI: 10.1021/acsami.4c03150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
When organic cross-linked polymers are combined with metal halide perovskite nanocrystals (PNCs) for realizing luminescent perovskite-polymer display materials, the stability of PNCs is enhanced and their shrinkage is suppressed. This work presents a feasible strategy for preparing CsPbBr3 nanocrystals (NCs) within a polydicyclopentadiene (PDCPD) thermosetting cross-linked resin matrix simultaneously via a one-step reaction. The obtained PDCPD@PNCs composite exhibits narrow peak half-widths (15-20 nm), high light transmittance (80%), low curing volume shrinkage (1.4%), tunable tensile properties, excellent stability, and a photoluminescence quantum yield (PLQY) of 44.3%. The composite material exhibits long-term stability in water, acid, and base solutions for over 90 days, with the PL intensity being maintained at over 90%. Furthermore, the composite is highly resistant to polar organic solvents owing to the insolubility imparted by cross-linking. White LEDs (WLED) fabricated using the as-prepared composite demonstrate excellent potential as light sources in optical devices.
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Affiliation(s)
- Haoqing Teng
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Li Ma
- Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China
| | - Chenhui Cui
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Zhen Li
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Kexiang Chen
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Xiaoqing Ming
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Yinzhou Guo
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Qiang Zhang
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Zhishen Ge
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Yilong Cheng
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Aizhao Pan
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Yanfeng Zhang
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
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13
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Zheng J, Zhang W, Huang Y, Shao J, Khan MS, Chi Y. Encapsulation of Pure Water-Stable Perovskite Nanocrystals (PNCs) into Biological Environment-Stable PNCs for Cell Imaging. Inorg Chem 2024; 63:5623-5633. [PMID: 38471143 DOI: 10.1021/acs.inorgchem.3c04620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2024]
Abstract
Recently emerging perovskite nanocrystals (PNCs) are very attractive fluorescence nanomaterials due to their very narrow emission peak, tunable wavelength, and extremely high quantum yield, but their chemosensing, biosensing and bioimaging applications suffer from the poor stability of ordinary PNCs in aqueous media, especially in biological matrices. Recently developed water-stable 2D CsPb2Br5-encapsulated 3D CsPbBr3 PNCs (i.e., CsPbBr3/CsPb2Br5 PNCs) show extremely stable light emission in pure water, but their fluorescence is seriously quenched in aqueous media containing biological molecules due to their chemical reactions. In this work, we used a facile method to encapsulate pure water-stable CsPbBr3/CsPb2Br5 PNCs in water with SiO2 and polyethylene glycol hexadecyl ether (Brij58) into a new kind of biological environment-stable PNCs (CsPbBr3/CsPb2Br5@SiO2-Brij58). The synthesis of the target PNCs can be accomplished in a fast, easy, and green way. The obtained CsPbBr3/CsPb2Br5@SiO2-Brij58 PNCs maintain strong fluorescence emission for a long time, all in pH 7.4 PBS, BSA, and minimum essential medium, exhibiting excellent biological environment stability. Moreover, the developed biological environment-stable PNCs show good biocompatibility and have been successfully used in cell imaging. Overall, the work provides an easy, low-cost, and efficient application of PNCs in bioimaging.
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Affiliation(s)
- Jingcheng Zheng
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Weiwei Zhang
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Yun Huang
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Jiwei Shao
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Malik Saddam Khan
- Department of Chemistry, Kohsar University Murree, Murree, Punjab 47150, Pakistan
| | - Yuwu Chi
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, China
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14
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Pan Q, Hu Y, Qiu Y, Liu S, Wang Y, Chen J, Zhang Q, Cao M. Ligand Engineering for Mitigating Exciton-Phonon Coupling in Mixed Halide Perovskite Nanocrystals. J Phys Chem Lett 2024:3441-3449. [PMID: 38511538 DOI: 10.1021/acs.jpclett.4c00399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
The vulnerability of mixed halide perovskite nanocrystals (NCs) remains challenging because of the weak interaction between commonly employed ligands, oleic acid/oleylamine (OAm/OA) and halide anions, coupled with substantial surface phonon energy. Here, we introduce 3-aminopropyltriethoxysilane (APTES) as a capping ligand to modify CsPbBrI2 NCs to enhance the interactions between them. The optical properties have been significantly enhanced, and halide segregation has been suppressed, both of which can be attributed to the reduced phonon energy and exciton-phonon coupling strength. Moreover, these APTES-CsPbBrI2 NCs exhibit a broad color gamut and sustained color stability during long-term operation, indicating their promising potential in display technologies. This work may offer insights into surface engineering to enhance the properties and band stability of mixed halide perovskite NCs.
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Affiliation(s)
- Qi Pan
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Soochow University, Suzhou, Jiangsu 215123, P. R. China
| | - Yiqi Hu
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Soochow University, Suzhou, Jiangsu 215123, P. R. China
| | - Yinghua Qiu
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Soochow University, Suzhou, Jiangsu 215123, P. R. China
| | - Sijin Liu
- Suzhou Xingshuo Nanotech Co., Ltd. (Mesolight), 99 Jinjihu Road, Suzhou, Jiangsu 215123, P. R. China
| | - Yunjun Wang
- Suzhou Xingshuo Nanotech Co., Ltd. (Mesolight), 99 Jinjihu Road, Suzhou, Jiangsu 215123, P. R. China
| | - Jinxing Chen
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Soochow University, Suzhou, Jiangsu 215123, P. R. China
| | - Qiao Zhang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Soochow University, Suzhou, Jiangsu 215123, P. R. China
| | - Muhan Cao
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Soochow University, Suzhou, Jiangsu 215123, P. R. China
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15
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Wu XG, Sun S, Song T, Zhang X, Wang C, Yang Y, Wang S, Zhong H. Revealing the vertical structure of in-situ fabricated perovskite nanocrystals films toward efficient pure red light-emitting diodes. FUNDAMENTAL RESEARCH 2024; 4:362-368. [PMID: 38933501 PMCID: PMC11197484 DOI: 10.1016/j.fmre.2022.05.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 04/29/2022] [Accepted: 05/06/2022] [Indexed: 10/18/2022] Open
Abstract
The development of efficient perovskite light-emitting diodes (PeLEDs) relies strongly on the fabrication of perovskite films with rationally designed structures (grain size, composition, surface, etc.). Therefore, an understanding of structure-performance relationships is of vital importance for developing high-performance perovskite devices, particularly for devices with in-situ fabricated perovskite nanocrystal films. In this study, we reveal the vertical structure of an in-situ fabricated quasi-two-dimensional perovskite film. By combining time-of-flight secondary ion mass spectrometry, energy dispersive spectroscopy, grazing incidence wide-angle X-ray scattering (GIWAXS), and low-temperature photoluminescence spectra, we illustrate that the resulting in-situ fabricated DPPA2Csn-1Pbn(Br0.3I0.7)3n+1 (DPPA+: 3,3-diphenylpropylammonium) film has a gradient structure with a very thin layer of ligands on the surface, predominantly small-n domains at the top, and predominantly large-n domains at the bottom owing to the solubility difference of the precursors. In addition, GIWAXS measurements show that the domain of n = 2 on the top layer has an ordered in-plane alignment. Based on the understanding of the film structure, we developed an in-situ fabrication process with ligand exchange to achieve efficient pure red PeLEDs at 638 nm with an average external quantum efficiency (EQE) of 7.4%. The optimized device had a maximum luminance of 623 cd/m2 with a peak EQE of 9.7%.
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Affiliation(s)
- Xian-gang Wu
- MIIT Key Laboratory for Low-Dimensional Quantum Structure and Devices, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Shipei Sun
- MIIT Key Laboratory for Low-Dimensional Quantum Structure and Devices, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Tinglu Song
- Experimental Center of Advanced Materials, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Xin Zhang
- MIIT Key Laboratory for Low-Dimensional Quantum Structure and Devices, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Chenhui Wang
- MIIT Key Laboratory for Low-Dimensional Quantum Structure and Devices, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Yingguo Yang
- Shanghai Synchrotron Radiation Facility (SSRF), Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, China
| | - Shuangpeng Wang
- Institute of Applied Physics and Materials Engineering, University of Macau, Macau 999078, China
| | - Haizheng Zhong
- MIIT Key Laboratory for Low-Dimensional Quantum Structure and Devices, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, China
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16
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Liu N, Luo H, Wei X, Zeng X, Yang J, Huang Y, Yu P, Wang Y, Zhang D, Pi M, Liu X. Linearly Manipulating Color Emission via Anion Exchange Technology for High Performance Amplified Spontaneous Emission of Perovskites. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2308672. [PMID: 38051274 DOI: 10.1002/adma.202308672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 12/04/2023] [Indexed: 12/07/2023]
Abstract
The most attractive advantages of all-inorganic cesium lead halide perovskites are their optical gain over broad spectral ranges through the visible spectrum, so are well suited to use in tunable lasers or broadband amplifiers. Most reported anion exchange reactions face a challenge to achieve the desired halogen-variable perovskites due to rapid and uncontrollable reactions and difficulty to synthesize directly. In this study, a simple vapor/solid anion exchange strategy is demonstrated for controlling the reaction process and realizing a wide range tuning of band gap and amplified spontaneous emission (ASE) wavelength, which exhibits a temperature-dependent anion exchange rate. By optimizing the reaction temperature at 90 °C, the ASE wavelength can be linearly manipulated by just controlling the reaction time. A clear quantitative relationship between ASE peak position and reaction time is achieved. Compares with the CsPbClBr2 film obtained via the liquid phase anion exchange method, the fabricated perovskite films obtained by vapor/solid anion exchange technology exhibit superior film quality and enhanced ASE performance. This work may have applications in the future using facile and controllable techniques to develop high-quality full-color visible lasers.
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Affiliation(s)
- Nian Liu
- School of Physics and Electronic Engineering, Chongqing Normal University, Chongqing, 401331, China
| | - Haoyue Luo
- School of Physics and Electronic Engineering, Chongqing Normal University, Chongqing, 401331, China
| | - Xiaoyan Wei
- School of Physics and Electronic Engineering, Chongqing Normal University, Chongqing, 401331, China
| | - Xin Zeng
- School of Physics and Electronic Engineering, Chongqing Normal University, Chongqing, 401331, China
| | - Jie Yang
- School of Physics and Electronic Engineering, Chongqing Normal University, Chongqing, 401331, China
| | - Yexiong Huang
- School of Physics and Electronic Engineering, Chongqing Normal University, Chongqing, 401331, China
| | - Peng Yu
- School of Physics and Electronic Engineering, Chongqing Normal University, Chongqing, 401331, China
| | - Yanping Wang
- Chongqing Research Institute, Changchun University of Science and Technology, Chongqing, 401135, China
| | - Dingke Zhang
- School of Physics and Electronic Engineering, Chongqing Normal University, Chongqing, 401331, China
| | - Mingyu Pi
- School of Physics and Electronic Engineering, Chongqing Normal University, Chongqing, 401331, China
| | - Xinfeng Liu
- CAS Key Laboratory of Standardization and Measurement for Nano-technology, National Center for Nanoscience and Technology, Beijing, 100190, China
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Zhang G, Yang C, Wei Q, Long J, Shen X, Chen Y, Ke B, Liang W, Zhong X, Zou B. Sb 3+-Doped Indium-Based Metal Halide (Gua) 3InCl 6 with Efficient Yellow Emission. ACS APPLIED MATERIALS & INTERFACES 2024; 16:3841-3852. [PMID: 38207013 DOI: 10.1021/acsami.3c15442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2024]
Abstract
In recent years, low-dimensional organic-inorganic hybrid metal halides (OIHMHs) have shown excellent photophysical properties due to their quantum structure, adjustable energy levels, and energy transfer between inorganic and organic components, which have attracted extensive attention from researchers. Herein, we synthesize a zero-dimensional (0D) OIHMH, Sb3+:(Gua)3InCl6, by introducing Sb3+ into (Gua)3InCl6, which undergoes a significant enhancement of the emission peak at 580 nm with the photoluminescence quantum yield (PLQY) boosted from 17.86 to 95.72% when excited at 340 nm. This boost in photoluminescence of the doped sample was studied by combining ultrafast femtosecond transient absorption, temperature-dependent photoluminescence (PL) spectra, and density functional theory (DFT) calculation, revealing the process of self-trapped exciton (STE) recombination to emit light at both Sb and In sites in this 0D structure simultaneously. This material with the lowest dark STE level at the In site for emission in the undoped sample can amazingly yield very strong emission in the doped sample, which has never been observed before. Finally, we tested its application in a photoelectric device. This work not only helps to gain a deeper understanding of the formation of STEs in In-based halides but also plays a certain guiding role in the design of new luminescent materials.
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Affiliation(s)
- Guolun Zhang
- School of Physical Science and Technology, Guangxi University, Nanning 530004, China
- State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, MOE Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, and School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Chengzhi Yang
- School of Physical Science and Technology, Guangxi University, Nanning 530004, China
- State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, MOE Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, and School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Qilin Wei
- School of Physical Science and Technology, Guangxi University, Nanning 530004, China
- State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, MOE Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, and School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Jiangjie Long
- School of Physical Science and Technology, Guangxi University, Nanning 530004, China
- State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, MOE Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, and School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Xiaodong Shen
- School of Physical Science and Technology, Guangxi University, Nanning 530004, China
- State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, MOE Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, and School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Yijun Chen
- State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, MOE Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, and School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Bao Ke
- School of Physical Science and Technology, Guangxi University, Nanning 530004, China
- State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, MOE Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, and School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Weizheng Liang
- State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, MOE Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, and School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Xianci Zhong
- Key Laboratory of Disaster Prevention and Structural Safety of Ministry of Education, Guangxi University, Nanning 530004, China
| | - Bingsuo Zou
- State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, MOE Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, and School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
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18
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Huang S, Bian C, Xu W, Zhang H, Gao S, Wang Y, Wang Y. Enhanced stability of CsPbBr 3 nanocrystals through Al 2O 3 and polymer coating. Phys Chem Chem Phys 2024; 26:3578-3586. [PMID: 38214561 DOI: 10.1039/d3cp04768g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2024]
Abstract
Lead halide perovskite nanocrystals have emerged as a promising candidate for next-generation display applications due to their attractive optical properties and low-cost production. However, the environmental stability of perovskite remains a major challenge, hindering their practical applications and scalability for commercialization. In this study, we present an effective method to enhance the stability of CsPbBr3 nanocrystals by coating them with a combination of Al2O3 and a polymer. The unique double protection structure significantly improves their resistance to moisture, heat, and polar solvents. It is worth noting that compared with the ordinary CsPbBr3 nanocrystals, the modified nanocrystals have better stability and higher luminous intensity. After soaking in water for 360 hours, the modified nanocrystals retained 85% of their initial luminous intensity. Under optimal conditions, the luminous intensity of modified nanocrystals increased by 36%. Furthermore, the thermal stability and organic solvent resistance of the nanocrystals are improved compared with the nanocrystals uncoated with Al2O3. The synthesized white light emitting diode using the modified PNCs achieves a color gamut coverage rate of 129% under standard NTSC, and 95% under standard Rec.2020, indicating its potential for future display applications. This research presents a promising approach for the development of stable perovskite nanocrystals with enhanced performance in various optoelectronic devices.
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Affiliation(s)
- Sheng Huang
- School of Safety Engineering, China University of Mining and Technology, Xuzhou, 221116, China.
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou, 221116, China.
| | - Ce Bian
- School of Safety Engineering, China University of Mining and Technology, Xuzhou, 221116, China.
| | - Wenjie Xu
- School of Safety Engineering, China University of Mining and Technology, Xuzhou, 221116, China.
| | - Hui Zhang
- School of Safety Engineering, China University of Mining and Technology, Xuzhou, 221116, China.
| | - Shasha Gao
- School of Safety Engineering, China University of Mining and Technology, Xuzhou, 221116, China.
| | - Yue Wang
- School of Safety Engineering, China University of Mining and Technology, Xuzhou, 221116, China.
- School of Information and Control Engineering, China University of Mining and Technology, Xu Zhou, 221116, China
- Yuyao Sunny Intelligent Optical Technology Co., Ltd, Ningbo, 315400, China
| | - Yuling Wang
- Heilongjiang Provincial Key Laboratory of Oilfield Applied Chemistry and Technology, School of Mechatronic Engineering, Daqing Normal University, Daqing 163712, China.
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19
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Cova F, Erroi A, Zaffalon ML, Cemmi A, Di Sarcina I, Perego J, Monguzzi A, Comotti A, Rossi F, Carulli F, Brovelli S. Scintillation Properties of CsPbBr 3 Nanocrystals Prepared by Ligand-Assisted Reprecipitation and Dual Effect of Polyacrylate Encapsulation toward Scalable Ultrafast Radiation Detectors. NANO LETTERS 2024; 24:905-913. [PMID: 38197790 DOI: 10.1021/acs.nanolett.3c04083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2024]
Abstract
Lead halide perovskite nanocrystals (LHP-NCs) embedded in polymeric hosts are gaining attention as scalable and low-cost scintillation detectors for technologically relevant applications. Despite rapid progress, little is currently known about the scintillation properties and stability of LHP-NCs prepared by the ligand assisted reprecipitation (LARP) method, which allows mass scalability at room temperature unmatched by any other type of nanostructure, and the implications of incorporating LHP-NCs into polyacrylate hosts are still largely debated. Here, we show that LARP-synthesized CsPbBr3 NCs are comparable to particles from hot-injection routes and unravel the dual effect of polyacrylate incorporation, where the partial degradation of LHP-NCs luminescence is counterbalanced by the passivation of electron-poor defects by the host acrylic groups. Experiments on NCs with tailored surface defects show that the balance between such antithetical effects of polymer embedding is determined by the surface defect density of the NCs and provide guidelines for further material optimization.
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Affiliation(s)
- Francesca Cova
- Department of Materials Science, University of Milano─Bicocca, Via Roberto Cozzi 55, 20125 Milano, Italy
| | - Andrea Erroi
- Department of Materials Science, University of Milano─Bicocca, Via Roberto Cozzi 55, 20125 Milano, Italy
| | - Matteo L Zaffalon
- Department of Materials Science, University of Milano─Bicocca, Via Roberto Cozzi 55, 20125 Milano, Italy
| | - Alessia Cemmi
- ENEA Fusion and Technology for Nuclear Safety and Security Department, ENEA Casaccia Research Center, Via Anguillarese 301, 00123 Rome, Italy
| | - Ilaria Di Sarcina
- ENEA Fusion and Technology for Nuclear Safety and Security Department, ENEA Casaccia Research Center, Via Anguillarese 301, 00123 Rome, Italy
| | - Jacopo Perego
- Department of Materials Science, University of Milano─Bicocca, Via Roberto Cozzi 55, 20125 Milano, Italy
| | - Angelo Monguzzi
- Department of Materials Science, University of Milano─Bicocca, Via Roberto Cozzi 55, 20125 Milano, Italy
| | - Angiolina Comotti
- Department of Materials Science, University of Milano─Bicocca, Via Roberto Cozzi 55, 20125 Milano, Italy
| | - Francesca Rossi
- IMEM-CNR Institute, Parco Area delle Scienze, 37/A, 43124, Parma, Italy
| | - Francesco Carulli
- Department of Materials Science, University of Milano─Bicocca, Via Roberto Cozzi 55, 20125 Milano, Italy
| | - Sergio Brovelli
- Department of Materials Science, University of Milano─Bicocca, Via Roberto Cozzi 55, 20125 Milano, Italy
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20
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Zhang LL, Luo J, Liu B, Yang J, Cai MQ. Effect of substituting on the transition dipole moment of the double perovskite Cs 2AgInCl 6. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2023; 36:075703. [PMID: 37918105 DOI: 10.1088/1361-648x/ad0917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 11/01/2023] [Indexed: 11/04/2023]
Abstract
The all-inorganic double perovskite Cs2AgInCl6with three dimensional structure has attracted much attention due to its direct bandgap property and particular luminescence mechanism, which is self-trapped exciton emission. However, it is a pity that Cs2AgInCl6exhibits low photoluminescence quantum yield, which affects its application for light-emitting devices. In this paper, the band structure and transition dipole moment of Cs2AgIn(1-x)SbxCl6(x= 0, 0.25, 0.5, 0.75) are calculated using first principle calculation. The calculated results shows that the pure material Cs2AgInCl6not only has a large band gap but also has the dipole forbidden transition, which means that the electrons cannot be excited from the valence band maximum to the conduction band minimum. However, the substituted Cs2AgIn0.75Sb0.25Cl6have a good property for the band gap about 3.066 eV and break forbidden transition at point X. The reason for its change is due to the overlap of electron and hole for charge density. Our work provides theoretical guidance for the design of more efficient light-emitting devices.
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Affiliation(s)
- Lu-Lu Zhang
- Hunan Provincial Key Laboratory of High-Energy Scale Physics and School of Physics and Electronics, Hunan University, Changsha 410082, People's Republic of China
| | - Jun Luo
- Hunan Provincial Key Laboratory of High-Energy Scale Physics and School of Physics and Electronics, Hunan University, Changsha 410082, People's Republic of China
| | - Biao Liu
- Hunan Key Laboratory for Super-microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha 410083, Hunan, People's Republic of China
| | - Junliang Yang
- Hunan Key Laboratory for Super-microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha 410083, Hunan, People's Republic of China
| | - Meng-Qiu Cai
- Hunan Provincial Key Laboratory of High-Energy Scale Physics and School of Physics and Electronics, Hunan University, Changsha 410082, People's Republic of China
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21
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Chen C, Wang Z, Wu J, Deng Z, Zhang T, Zhu Z, Jin Y, Lew B, Srivastava I, Liang Z, Nie S, Gruev V. Bioinspired, vertically stacked, and perovskite nanocrystal-enhanced CMOS imaging sensors for resolving UV spectral signatures. SCIENCE ADVANCES 2023; 9:eadk3860. [PMID: 37922355 PMCID: PMC10624339 DOI: 10.1126/sciadv.adk3860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Accepted: 10/02/2023] [Indexed: 11/05/2023]
Abstract
Imaging and identifying target signatures and biomedical markers in the ultraviolet (UV) spectrum is broadly important to medical imaging, military target tracking, remote sensing, and industrial automation. However, current silicon-based imaging sensors are fundamentally limited because of the rapid absorption and attenuation of UV light, hindering their ability to resolve UV spectral signatures. Here, we present a bioinspired imaging sensor capable of wavelength-resolved imaging in the UV range. Inspired by the UV-sensitive visual system of the Papilio xuthus butterfly, the sensor monolithically combines vertically stacked photodiodes and perovskite nanocrystals. This imaging design combines two complementary UV detection mechanisms: The nanocrystal layer converts a portion of UV signals into visible fluorescence, detected by the photodiode array, while the remaining UV light is detected by the top photodiode. Our label-free UV fluorescence imaging data from aromatic amino acids and cancer/normal cells enables real-time differentiation of these biomedical materials with 99% confidence.
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Affiliation(s)
- Cheng Chen
- Department of Engineering and Computer Engineering, University of Illinois at Urbana-Champaign, 306 N Wright St, Urbana, IL 61801, USA
| | - Ziwen Wang
- Department of Bioengineering, University of Illinois at Urbana-Champaign, 1406 W Green St, Urbana, IL 61801, USA
| | - Jiajing Wu
- College of Engineering and Applied Sciences, Nanjing University, 163 XianLin Ave, Nanjing, Jiangsu 210023, China
- School of Chemistry and Chemical Engineering, Yangzhou University, 180 Siwangting Road, Yangzhou, Jiangsu 250002, China
| | - Zhengtao Deng
- College of Engineering and Applied Sciences, Nanjing University, 163 XianLin Ave, Nanjing, Jiangsu 210023, China
| | - Tao Zhang
- College of Engineering and Applied Sciences, Nanjing University, 163 XianLin Ave, Nanjing, Jiangsu 210023, China
| | - Zhongmin Zhu
- Department of Engineering and Computer Engineering, University of Illinois at Urbana-Champaign, 306 N Wright St, Urbana, IL 61801, USA
| | - Yifei Jin
- Department of Engineering and Computer Engineering, University of Illinois at Urbana-Champaign, 306 N Wright St, Urbana, IL 61801, USA
| | - Benjamin Lew
- Department of Engineering and Computer Engineering, University of Illinois at Urbana-Champaign, 306 N Wright St, Urbana, IL 61801, USA
| | - Indrajit Srivastava
- Department of Engineering and Computer Engineering, University of Illinois at Urbana-Champaign, 306 N Wright St, Urbana, IL 61801, USA
| | - Zuodong Liang
- Department of Engineering and Computer Engineering, University of Illinois at Urbana-Champaign, 306 N Wright St, Urbana, IL 61801, USA
| | - Shuming Nie
- Department of Engineering and Computer Engineering, University of Illinois at Urbana-Champaign, 306 N Wright St, Urbana, IL 61801, USA
- Department of Bioengineering, University of Illinois at Urbana-Champaign, 1406 W Green St, Urbana, IL 61801, USA
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, 405 N Mathews Ave, Urbana, IL 61801, USA
| | - Viktor Gruev
- Department of Engineering and Computer Engineering, University of Illinois at Urbana-Champaign, 306 N Wright St, Urbana, IL 61801, USA
- Department of Bioengineering, University of Illinois at Urbana-Champaign, 1406 W Green St, Urbana, IL 61801, USA
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, 405 N Mathews Ave, Urbana, IL 61801, USA
- Carle Illinois College of Medicine, University of Illinois at Urbana-Champaign, 506 South Mathews Ave, Urbana, IL 61801, USA
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22
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Liu C, Zhu Z, Pan K, Fu Y, Zhang K, Yang B. Bulk CsPbCl xBr 3-x (1 ≤ x ≤ 3) perovskite nanocrystals/polystyrene nanocomposites with controlled Rayleigh scattering for light guide plate. LIGHT, SCIENCE & APPLICATIONS 2023; 12:261. [PMID: 37914701 PMCID: PMC10620209 DOI: 10.1038/s41377-023-01306-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 10/09/2023] [Accepted: 10/12/2023] [Indexed: 11/03/2023]
Abstract
Perovskite nanocrystals (PNCs)/polymer nanocomposites can combine the advantages of each other, but extremely few works can achieve the fabrication of PNCs/polymer nanocomposites by bulk polymerization. We originally adopt a two-type ligand strategy to fabricate bulk PNCs/polystyrene (PS) nanocomposites, including a new type of synthetic polymerizable ligand. The CsPbCl3 PNCs/PS nanocomposites show extremely high transparency even the doping content up to 5 wt%. The high transparency can be ascribed to the Rayleigh scattering as the PNCs distribute uniformly without obvious aggregation. Based on this behavior, we first exploit the potential of PNCs to serve as scatters inside light guided plate (LGP), whose surface illuminance and uniformity can be improved, and this new kind of LGP is compatible with the advanced liquid crystal display technology. Thanks to the facile composition adjustment of CsPbClxBr3-x (1 ≤ x ≤ 3) PNCs, the Rayleigh scattering behavior can also be adjusted so as to the performance of LGP. The best-performing 5.0-inch LGP based on CsPbCl2.5Br0.5 PNCs/PS nanocomposites shows 20.5 times higher illuminance and 1.8 times higher uniformity in display than the control. The LGP based on PNCs/PS nanocomposite exhibits an enormous potential in commercialization no matter based on itself or combined with the LGP-related technology.
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Affiliation(s)
- Chongming Liu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 130012, Changchun, China
| | - Zhicheng Zhu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 130012, Changchun, China
| | - Kaibo Pan
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 130012, Changchun, China
| | - Yuan Fu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 130012, Changchun, China
| | - Kai Zhang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 130012, Changchun, China
| | - Bai Yang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 130012, Changchun, China.
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23
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Kim JI, Zeng Q, Park S, Lee H, Park J, Kim T, Lee TW. Strategies to Extend the Lifetime of Perovskite Downconversion Films for Display Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2209784. [PMID: 36525667 DOI: 10.1002/adma.202209784] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 12/11/2022] [Indexed: 06/17/2023]
Abstract
Metal halide perovskite nanocrystals (PeNCs) have outstanding luminescent properties that are suitable for displays that have high color purity and high absorption coefficient; so they are evaluated for application as light emitters for organic light-emitting diodes, light-converters for downconversion displays, and future near-eye augmented reality/virtual reality displays. However, PeNCs are chemically vulnerable to heat, light, and moisture, and these weaknesses must be overcome before devices that use PeNCs can be commercialized. This review examines strategies to overcome the low stability of PeNCs and thereby permit the fabrication of stable downconversion films, and summarizes downconversion-type display applications and future prospects. First, methods to increase the chemical stability of PeNCs are examined. Second, methods to encapsulate PeNC downconversion films to increase their lifetime are reviewed. Third, methods to increase the long-term compatibility of resin with PeNCs, and finally, how to secure stability using fillers added to the resin are summarized. Fourth, the method to manufacture downconversion films and the procedure to evaluate their reliability for commercialization is then described. Finally, the prospects of a downconversion system that exploits the properties of PeNCs and can be employed to fabricate fine pixels for high-resolution displays and for near-eye augmented reality/virtual reality devices are explored.
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Affiliation(s)
- Jae Il Kim
- Department of Materials Science and Engineering, Seoul National University, 08826, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea
- Research Institute of Advanced Materials, Seoul National University, 08826, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea
| | - Qingsen Zeng
- Department of Materials Science and Engineering, Seoul National University, 08826, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea
| | - Sunghee Park
- School of Chemical and Biological Engineering, Seoul National University, 08826, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea
- PEROLED Co. Ltd., 08826, Building 940, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea
| | - Hyejin Lee
- Department of Materials Science and Engineering, Seoul National University, 08826, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea
| | - Jinwoo Park
- Department of Materials Science and Engineering, Seoul National University, 08826, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea
| | - Taejun Kim
- School of Chemical and Biological Engineering, Seoul National University, 08826, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea
| | - Tae-Woo Lee
- Department of Materials Science and Engineering, Seoul National University, 08826, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea
- Research Institute of Advanced Materials, Seoul National University, 08826, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea
- PEROLED Co. Ltd., 08826, Building 940, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea
- Soft Foundry, Seoul National University, 08826, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea
- Institute of Engineering Research, Seoul National University, 08826, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea
- SN Display Co. Ltd., 08826, Building 33, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea
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24
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Geng Y, Hu H, Jia Y, Huang X, Yang T, Liang R, Chen Z, Yuan Z, Xu J. Synthesis of CsPbBr 3 in Micro Total Reaction System: Fast Operation Space Mapping and Subsecond Growth Process Monitoring. SMALL METHODS 2023; 7:e2300394. [PMID: 37428549 DOI: 10.1002/smtd.202300394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Revised: 05/28/2023] [Indexed: 07/11/2023]
Abstract
Lead halide perovskite nanocrystals (LHP NCs) have the characteristics of fast reaction kinetics and crystal instability due to the intrinsically highly ionic bonding between the respective ions, which bring challenges for revealing the growth kinetics and practical applications. Compared with conventional batch synthesis methods, the single-function microreactor can achieve precise and stable control of the NCs synthesis process, but it still has the shortcoming of not being able to obtain information about the growth process. In this study, a micro Total Reaction System (μTRS) with remote control, online detection, and rapid data analysis functions is designed. μTRS can sample the photoluminescence information of CsPbBr3 NCs growth in ligand-assisted reprecipitation method. CsPbBr3 NCs with an emission range of 435-492 nm are successfully detected, which breaks the record of the smallest size of CsPbBr3 NCs synthesized directly from precursors. The real-time feature of μTRS enables the construction of an automated close-loop synthesis system. Besides, the rapid acquisition and timely processing of product information enable the rapid mapping of the operation space for CsPbBr3 NCs preparation, which provides a reliable and learnable data set for designing a fully autonomous microreaction system capable of synthesizing NCs.
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Affiliation(s)
- Yuhao Geng
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
- School of Materials Science & Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Haoyang Hu
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Yongqi Jia
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Xintong Huang
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Tian Yang
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Runzhe Liang
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Zhuo Chen
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Zhihong Yuan
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Jianhong Xu
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
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25
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Fu H, Wang K, Wu H, Bowen CR, Fang Z, Yan Z, Jiang S, Ou D, Yang Y, Zheng J, Yang W. Enhanced Hygrothermal Stability of In-Situ-Grown MAPbBr 3 Nanocrystals in Polymer with Suppressed Desorption of Ligands. Inorg Chem 2023; 62:13467-13475. [PMID: 37545093 DOI: 10.1021/acs.inorgchem.3c01834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/08/2023]
Abstract
Currently, the intrinsic instability of organic-inorganic hybrid perovskite nanocrystals (PNCs) at high temperature and high humidity still stands as a big barrier to hinder their potential applications in optoelectronic devices. Herein, we report the controllable in-situ-grown PNCs in polyvinylidene fluoride (PVDF) polymer with profoundly enhanced hygrothermal stability. It is found that the introduced tetradecylphosphonic acid (TDPA) ligand enables significantly improved binding to the surface of PNCs via a strong covalently coordinated P-O-Pb bond, as evidenced by density functional theory calculations and X-ray photoelectron spectroscopy analyses. Accordingly, such enhanced binding could not only make efficient passivation of the surface defects of PNCs but also enable the remarkably suppressed desorption of the ligand from the PNCs under high-temperature environments. Consequently, the photoluminescence quantum yield (PL QY) of the as-fabricated MAPbBr3-PNCs@PVDF film exhibits almost no decay after exposure to air at 333 K over 1800 h. Once the temperatures are increased from 293 to 353 K, their PL intensity can be kept as 88.6% of the initial value, much higher than that without the TDPA ligand (i.e., 42.4%). Moreover, their PL QY can be maintained above 50% over 1560 h (65 days) under harsh working conditions of 333 K and 90% humidity. As a proof of concept, the as-assembled white light-emitting diodes display a large color gamut of 125% National Television System Committee standard, suggesting their promising applications in backlight devices.
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Affiliation(s)
- Hui Fu
- Institute of Micro/Nano Materials and Devices, Ningbo University of Technology, Ningbo, Zhejiang 315211, P. R. China
- Institute of Zhejiang, Tianjin University, Ningbo, Zhejiang 315201, P. R. China
| | - Kai Wang
- Institute of Micro/Nano Materials and Devices, Ningbo University of Technology, Ningbo, Zhejiang 315211, P. R. China
| | - Hao Wu
- Institute of Micro/Nano Materials and Devices, Ningbo University of Technology, Ningbo, Zhejiang 315211, P. R. China
| | - Chris R Bowen
- Department of Mechanical Engineering, University of Bath, Bath BA2 7AK, U.K
| | - Zhi Fang
- Institute of Micro/Nano Materials and Devices, Ningbo University of Technology, Ningbo, Zhejiang 315211, P. R. China
| | - Zebin Yan
- Institute of Micro/Nano Materials and Devices, Ningbo University of Technology, Ningbo, Zhejiang 315211, P. R. China
| | - Shuheng Jiang
- Institute of Micro/Nano Materials and Devices, Ningbo University of Technology, Ningbo, Zhejiang 315211, P. R. China
| | - Deliu Ou
- Institute of Micro/Nano Materials and Devices, Ningbo University of Technology, Ningbo, Zhejiang 315211, P. R. China
| | - Yang Yang
- Institute of Micro/Nano Materials and Devices, Ningbo University of Technology, Ningbo, Zhejiang 315211, P. R. China
| | - Jinju Zheng
- Institute of Micro/Nano Materials and Devices, Ningbo University of Technology, Ningbo, Zhejiang 315211, P. R. China
- Institute of Zhejiang, Tianjin University, Ningbo, Zhejiang 315201, P. R. China
| | - Weiyou Yang
- Institute of Micro/Nano Materials and Devices, Ningbo University of Technology, Ningbo, Zhejiang 315211, P. R. China
- Institute of Zhejiang, Tianjin University, Ningbo, Zhejiang 315201, P. R. China
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26
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Yu W, Wei M, Tang Z, Zou H, Li L, Zou Y, Yang S, Wang Y, Zhang Y, Li X, Guo H, Wu C, Qu B, Gao Y, Lu G, Wang S, Chen Z, Liu Z, Zhou H, Wei B, Liao Y, Zhang L, Li Y, Gong Q, Sargent EH, Xiao L. Separating Crystal Growth from Nucleation Enables the In Situ Controllable Synthesis of Nanocrystals for Efficient Perovskite Light-Emitting Diodes. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2301114. [PMID: 37314026 DOI: 10.1002/adma.202301114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 06/02/2023] [Indexed: 06/15/2023]
Abstract
Colloidal perovskite nanocrystals (PNCs) display bright luminescence for light-emitting diode (LED) applications; however, they require post-synthesis ligand exchange that may cause surface degradation and defect formation. In situ-formed PNCs achieve improved surface passivation using a straightforward synthetic approach, but their LED performance at the green wavelength is not yet comparable with that of colloidal PNC devices. Here, it is found that the limitations of in situ-formed PNCs stem from uncontrolled formation kinetics: conventional surface ligands confine perovskite nuclei but fail to delay crystal growth. A bifunctional carboxylic-acid-containing ammonium hydrobromide ligand that separates crystal growth from nucleation is introduced, leading to the formation of quantum-confined PNC solids exhibiting a narrow size distribution. Controlled crystallization is further coupled with defect passivation using deprotonated phosphinates, enabling improvements in photoluminescence quantum yield to near unity. Green LEDs are fabricated with a maximum current efficiency of 109 cd A-1 and an average external quantum efficiency of 22.5% across 25 devices, exceeding the performance of their colloidal PNC-based counterparts. A 45.6 h operating half-time is further documented for an unencapsulated device in N2 with an initial brightness of 100 cd m-2 .
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Affiliation(s)
- Wenjin Yu
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, Department of Physics, Peking University, Beijing, 100871, P. R. China
| | - Mingyang Wei
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, ON, M5S 3G4, Canada
| | - Zhenyu Tang
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, Department of Physics, Peking University, Beijing, 100871, P. R. China
| | - Hongshuai Zou
- State Key Laboratory of Integrated Optoelectronics, Key Laboratory of Automobile Materials of MOE, Jilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy Materials and School of Materials Science and Engineering, Jilin University, Changchun, 130012, P. R. China
| | - Liang Li
- School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China
| | - Yu Zou
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, Department of Physics, Peking University, Beijing, 100871, P. R. China
| | - Shuang Yang
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, Department of Physics, Peking University, Beijing, 100871, P. R. China
| | - Yunkun Wang
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, Department of Physics, Peking University, Beijing, 100871, P. R. China
| | - Yuqing Zhang
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, Department of Physics, Peking University, Beijing, 100871, P. R. China
| | - Xiangdong Li
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, Department of Physics, Peking University, Beijing, 100871, P. R. China
| | - Haoqing Guo
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, Department of Physics, Peking University, Beijing, 100871, P. R. China
| | - Cuncun Wu
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, Department of Physics, Peking University, Beijing, 100871, P. R. China
| | - Bo Qu
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, Department of Physics, Peking University, Beijing, 100871, P. R. China
| | - Yunan Gao
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, Department of Physics, Peking University, Beijing, 100871, P. R. China
| | - Guowei Lu
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, Department of Physics, Peking University, Beijing, 100871, P. R. China
| | - Shufeng Wang
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, Department of Physics, Peking University, Beijing, 100871, P. R. China
- Yangtze Delta Institute of Optoelectronics, Peking University, Nantong, 226010, P. R. China
| | - Zhijian Chen
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, Department of Physics, Peking University, Beijing, 100871, P. R. China
| | - Zhiwei Liu
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China
| | - Huanping Zhou
- School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China
| | - Bin Wei
- Key Laboratory of Advanced Display and System Applications, Shanghai University, Shanghai, 200072, P. R. China
| | - Yingjie Liao
- Key Laboratory of Advanced Display and System Applications, Shanghai University, Shanghai, 200072, P. R. China
| | - Lijun Zhang
- State Key Laboratory of Integrated Optoelectronics, Key Laboratory of Automobile Materials of MOE, Jilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy Materials and School of Materials Science and Engineering, Jilin University, Changchun, 130012, P. R. China
| | - Yan Li
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, Department of Physics, Peking University, Beijing, 100871, P. R. China
- Yangtze Delta Institute of Optoelectronics, Peking University, Nantong, 226010, P. R. China
| | - Qihuang Gong
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, Department of Physics, Peking University, Beijing, 100871, P. R. China
- Yangtze Delta Institute of Optoelectronics, Peking University, Nantong, 226010, P. R. China
| | - Edward H Sargent
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, ON, M5S 3G4, Canada
| | - Lixin Xiao
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, Department of Physics, Peking University, Beijing, 100871, P. R. China
- Yangtze Delta Institute of Optoelectronics, Peking University, Nantong, 226010, P. R. China
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27
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Romero-Pérez C, Delgado NF, Herrera-Collado M, Calvo ME, Míguez H. Ultrapure Green High Photoluminescence Quantum Yield from FAPbBr 3 Nanocrystals Embedded in Transparent Porous Films. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2023; 35:5541-5549. [PMID: 37528839 PMCID: PMC10389805 DOI: 10.1021/acs.chemmater.3c00934] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 06/19/2023] [Indexed: 08/03/2023]
Abstract
Achieving highly transparent and emissive films based on perovskite quantum dots (PQDs) is a challenging task since their photoluminescence quantum yield (PLQY) typically drops abruptly when they are used as building blocks to make a solid. In this work, we obtain highly transparent films containing FAPbBr3 quantum dots that display a narrow green emission (λ = 530 nm, full width at half-maximum (FWHM) = 23 nm) with a PLQY as high as 86%. The method employed makes use of porous matrices that act as arrays of nanoreactors to synthesize the targeted quantum dots within their void space, providing both a means to keep them dispersed and a protective environment. Further infiltration with poly(methyl methacrylate) (PMMA) increases the mechanical and chemical stability of the ensemble and serves to passivate surface defects, boosting the emission of the embedded PQD and significantly reducing the width of the emission peak, which fulfills the requirements established by the Commission Internationale de l'Éclairage (CIE) to be considered an ultrapure green emitter. The versatility of this approach is demonstrated by fabricating a color-converting layer that can be easily transferred onto a light-emitting device surface to modify the spectral properties of the outgoing radiation.
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Affiliation(s)
- Carlos Romero-Pérez
- Instituto
de Ciencias de Materiales de Sevilla (Consejo Superior de Investigaciones
Científicas-Universidad de Sevilla), C/Américo Vespucio, 49, Sevilla 41092, Spain
| | - Natalia Fernández Delgado
- Department
of Material Science, Metallurgical Engineering and Inorganic Chemistry
IMEYMAT, Facultad de Ciencias (Universidad
de Cádiz), Campus Río San Pedro, s/n, Puerto Real, Cádiz 11510, Spain
| | - Miriam Herrera-Collado
- Department
of Material Science, Metallurgical Engineering and Inorganic Chemistry
IMEYMAT, Facultad de Ciencias (Universidad
de Cádiz), Campus Río San Pedro, s/n, Puerto Real, Cádiz 11510, Spain
| | - Mauricio E. Calvo
- Instituto
de Ciencias de Materiales de Sevilla (Consejo Superior de Investigaciones
Científicas-Universidad de Sevilla), C/Américo Vespucio, 49, Sevilla 41092, Spain
| | - Hernán Míguez
- Instituto
de Ciencias de Materiales de Sevilla (Consejo Superior de Investigaciones
Científicas-Universidad de Sevilla), C/Américo Vespucio, 49, Sevilla 41092, Spain
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28
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Liu Z, Sun Y, Cai T, Yang H, Zhao J, Yin T, Hao C, Chen M, Shi W, Li X, Guan L, Li X, Wang X, Tang A, Chen O. Two-Dimensional Cs 2 AgIn x Bi 1- x Cl 6 Alloyed Double Perovskite Nanoplatelets for Solution-Processed Light-Emitting Diodes. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2211235. [PMID: 36906925 DOI: 10.1002/adma.202211235] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 02/21/2023] [Indexed: 05/12/2023]
Abstract
Lead-free double perovskites have emerged as a promising class of materials with potential to be integrated into a wide range of optical and optoelectronic applications. Herein, the first synthesis of 2D Cs2 AgInx Bi1- x Cl6 (0 ≤ x ≤ 1) alloyed double perovskite nanoplatelets (NPLs) with well controlled morphology and composition is demonstrated. The obtained NPLs show unique optical properties with the highest photoluminescence quantum yield of 40.1%. Both temperature dependent spectroscopic studies and density functional theory calculation results reveal that the morphological dimension reduction and In-Bi alloying effect together boost the radiative pathway of the self-trapped excitons of the alloyed double perovskite NPLs. Moreover, the NPLs exhibit good stability under ambient conditions and against polar solvents, which is ideal for all solution-processing of the materials in low-cost device manufacturing. The first solution-processed light-emitting diodes is demonstrated using the Cs2 AgIn0.9 Bi0.1 Cl6 alloyed double perovskite NPLs as the sole emitting component, showing luminance maximum of 58 cd m-2 and peak current efficiency of 0.013 cd A-1 . This study sheds light on morphological control and composition-property relationships of double perovskite nanocrystals, paving the way toward ultimate utilizations of lead-free perovskite materials in diverse sets of real-life applications.
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Affiliation(s)
- Zhenyang Liu
- Hebei Key Laboratory of Optic-Electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding, 071002, China
- Department of Chemistry, Brown University, Providence, RI, 02912, USA
| | - Yingying Sun
- Hebei Key Laboratory of Optic-Electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding, 071002, China
| | - Tong Cai
- Department of Chemistry, Brown University, Providence, RI, 02912, USA
| | - Hanjun Yang
- Department of Chemistry, Brown University, Providence, RI, 02912, USA
| | - JinXing Zhao
- Key Laboratory of Luminescence and Optical Information, Ministry of Education, School of Physical Science and Engineering, Beijing JiaoTong University, Beijing, 100044, China
| | - Tao Yin
- Hebei Key Laboratory of Optic-Electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding, 071002, China
| | - Chaoqi Hao
- Hebei Key Laboratory of Optic-Electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding, 071002, China
| | - Mingjun Chen
- Hebei Key Laboratory of Optic-Electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding, 071002, China
| | - Wenwu Shi
- Department of Chemistry, Brown University, Providence, RI, 02912, USA
- Institute of Information Technology, Shenzhen Institute of Information Technology, Shenzhen, 518172, China
| | - Xiaoxiao Li
- Hebei Key Laboratory of Optic-Electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding, 071002, China
| | - Li Guan
- Hebei Key Laboratory of Optic-Electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding, 071002, China
| | - Xu Li
- Hebei Key Laboratory of Optic-Electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding, 071002, China
| | - Xinzhong Wang
- Institute of Information Technology, Shenzhen Institute of Information Technology, Shenzhen, 518172, China
| | - Aiwei Tang
- Key Laboratory of Luminescence and Optical Information, Ministry of Education, School of Physical Science and Engineering, Beijing JiaoTong University, Beijing, 100044, China
| | - Ou Chen
- Department of Chemistry, Brown University, Providence, RI, 02912, USA
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29
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Getachew G, Wibrianto A, Rasal AS, Batu Dirersa W, Chang JY. Metal halide perovskite nanocrystals for biomedical engineering: Recent advances, challenges, and future perspectives. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2023.215073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
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30
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Liu Y, Wang C, Chen G, Wang S, Yu Z, Wang T, Ke W, Fang G. A generic lanthanum doping strategy enabling efficient lead halide perovskite luminescence for backlights. Sci Bull (Beijing) 2023:S2095-9273(23)00277-3. [PMID: 37127489 DOI: 10.1016/j.scib.2023.04.023] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 03/18/2023] [Accepted: 04/17/2023] [Indexed: 05/03/2023]
Abstract
Metal halide perovskites films have attracted great interest because of their solution-proceed fabrication and potential applications for next-generation displays. However, their non-ideal photoluminescence quantum efficiency (PLQE) and stability still does not meet the requirements of displays. Here, we adopt lanthanum ion (La3+) doping strategy to enhance its luminescence performance and the possibility of taking it to commercialization. In addition to the entry of lanthanum ions into the lattice to greatly improve the crystal quality, the excess La3+ gives rise to the formation of newly developed formamidinium cesium lanthanum bromine, (FA, Cs)2LaBr5, which provides additional energy transport pathways, therefore concentrating more energy onto the perovskite host. Consequently, a near-unity PLQE of 99.5% is realized in standardized green-emission cesium (Cs)/formamidinium (FA) mixed FA0.7Cs0.3PbBr3 perovskite films. The introduction of La3+ can also lead to markedly stability with nearly 1000 days' shelf storage half-lifetime and 400 hours' light-irradiation T90 lifetime as well as much-enhanced color purity. Moreover, the films with La3+ doping enable full-visible spectral enhancement and high-performance white light emission and trichromatic luminescence with 98.9% coverage of the color gamut area required for the Rec. 2020 standard, which suggest that perovskite films have great application potential for backlights in liquid crystal display technologies.
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Affiliation(s)
- Yongjie Liu
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan 430072, China
| | - Cheng Wang
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan 430072, China
| | - Guoyi Chen
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan 430072, China
| | - Shuxin Wang
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan 430072, China
| | - Zhiqiu Yu
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan 430072, China
| | - Ti Wang
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan 430072, China
| | - Weijun Ke
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan 430072, China.
| | - Guojia Fang
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan 430072, China.
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31
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Guggisberg D, Yakunin S, Neff C, Aebli M, Günther D, Kovalenko MV, Dirin DN. Colloidal CsPbX 3 Nanocrystals with Thin Metal Oxide Gel Coatings. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2023; 35:2827-2834. [PMID: 37063595 PMCID: PMC10100534 DOI: 10.1021/acs.chemmater.2c03562] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 03/07/2023] [Indexed: 06/19/2023]
Abstract
Lead halide perovskite (LHP) nanocrystals (NCs) have gathered much attention as light-emitting materials, particularly owing to their excellent color purity, band gap tunability, high photoluminescence quantum yield (PLQY), low cost, and scalable synthesis. To enhance the stability of LHP NCs, bulky strongly bound organic ligands are commonly employed, which counteract the extraction of charge carriers from the NCs and hinder their use as photoconductive materials and photocatalysts. Replacing these ligands with a thin coating is a complex challenge due to the highly dynamic ionic lattice, which is vulnerable to the commonly employed coating precursors and solvents. In this work, we demonstrate thin (<1 nm) metal oxide gel coatings through non-hydrolytic sol-gel reactions. The coated NCs are readily dispersible and highly stable in short-chain alcohols while remaining monodisperse and exhibiting high PLQY (70-90%). We show the successful coating of NCs in a wide range of sizes (5-14 nm) and halide compositions. Alumina-gel-coated NCs were chosen for an in-depth analysis, and the versatility of the approach is demonstrated by employing zirconia- and titania-based coatings. Compact films of the alumina-gel-coated NCs exhibit electronic and excitonic coupling between the NCs, leading to two orders of magnitude longer photoluminescence lifetimes (400-700 ns) compared to NCs in solution or their organically capped counterparts. This makes these NCs highly suited for applications where charge carrier delocalization or extraction is essential for performance.
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Affiliation(s)
- Dominic Guggisberg
- Department
of Chemistry and Applied Biosciences, ETH
Zürich, Zürich CH-8093, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa -
Swiss Federal Laboratories for Materials Science and Technology, Dübendorf CH-8600, Switzerland
| | - Sergii Yakunin
- Department
of Chemistry and Applied Biosciences, ETH
Zürich, Zürich CH-8093, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa -
Swiss Federal Laboratories for Materials Science and Technology, Dübendorf CH-8600, Switzerland
| | - Christoph Neff
- Department
of Chemistry and Applied Biosciences, ETH
Zürich, Zürich CH-8093, Switzerland
| | - Marcel Aebli
- Department
of Chemistry and Applied Biosciences, ETH
Zürich, Zürich CH-8093, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa -
Swiss Federal Laboratories for Materials Science and Technology, Dübendorf CH-8600, Switzerland
| | - Detlef Günther
- Department
of Chemistry and Applied Biosciences, ETH
Zürich, Zürich CH-8093, Switzerland
| | - Maksym V. Kovalenko
- Department
of Chemistry and Applied Biosciences, ETH
Zürich, Zürich CH-8093, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa -
Swiss Federal Laboratories for Materials Science and Technology, Dübendorf CH-8600, Switzerland
- NCCR
Catalysis, Institute of Inorganic Chemistry, Department of Chemistry
and Applied Biosciences, ETH Zürich, Zürich CH-8093, Switzerland
| | - Dmitry N. Dirin
- Department
of Chemistry and Applied Biosciences, ETH
Zürich, Zürich CH-8093, Switzerland
- Laboratory
for Thin Films and Photovoltaics, Empa -
Swiss Federal Laboratories for Materials Science and Technology, Dübendorf CH-8600, Switzerland
- NCCR
Catalysis, Institute of Inorganic Chemistry, Department of Chemistry
and Applied Biosciences, ETH Zürich, Zürich CH-8093, Switzerland
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32
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Zhou Q, Shang Z. CuInS 2 Nanocrystals Embedded PMMA Composite Films: Adjustment of Polymer Molecule Weights and Application in Remote-Type White LEDs. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1085. [PMID: 36985979 PMCID: PMC10058765 DOI: 10.3390/nano13061085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 03/12/2023] [Accepted: 03/16/2023] [Indexed: 06/18/2023]
Abstract
The commercial application of colloidal semiconductor nanocrystals has been realized owing to the development of composite film technology. Here, we demonstrated the fabrication of green and red emissive CuInS2 nanocrystals embedded polymer composite films of equal thickness by using a precise solution casting method. The impacts of polymer molecular weight on the dispersibility of CuInS2 nanocrystals were then systematically studied through evaluating the decrease in transmittance and red shift of emission wavelength. The composite films made from PMMA of small molecular weights exhibited higher transmittance. Applications of these green and red emissive composite films as color converters in remote-type light-emitting devices were further demonstrated.
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33
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Chen S, Liu H, Wu B, Wu X, Fu C. Comparative analysis of two models for the optical response of a thin slab: a film of finite thickness versus a surface current sheet. Phys Chem Chem Phys 2023; 25:6194-6202. [PMID: 36752694 DOI: 10.1039/d2cp05282b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
An accurate description of the electromagnetic properties of materials is fundamental to optical and electric devices. As a current research hotspot, thin slabs generally are modeled as a film of finite thickness with a dielectric function. However, inspired by two-dimensional materials, thin slabs can be regarded as surface current sheets with conductivity. Due to the convenience of the latter in simplifying the calculations, it becomes increasingly significant to determine the equivalent conditions of the two models. In this work, we compare the differences between the thin film and surface current models in calculating the transmissivity, reflectivity, and absorptivity of a SiC film. For normal incidence, the difference between the calculations of the two models is only non-negligible when the thickness is large (500 nm), because of the invalidation of surface current models and the excitation of Fabry-Perot resonance. In particular, we derive analytical formulas for the relative error in transmittance versus phase difference, which can be used to predict the difference between the two models as a function of film thickness. For oblique incidence, the two models have significant differences in the vicinity of epsilon-near-zero (ENZ) frequency. The excitation of the Berreman leaky mode in a thin film model causes a narrow blank absorption peak close to the ENZ frequency. However, we found that the surface current model is unable to form this resonance mode and further demonstrate it theoretically. In addition, it is found that the two models are equivalent in the case of a transverse electric wave even though the incidence is oblique. This work can enhance the awareness of the light-matter interaction and open unprecedented avenues for designing ultrathin optical devices.
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Affiliation(s)
- Shuo Chen
- LTCS and Department of Mechanics and Engineering Science, College of Engineering, Peking University, Beijing, 100871, China. .,Shandong Institute of Advanced Technology, Jinan, 250100, China.
| | - Haotuo Liu
- Shandong Institute of Advanced Technology, Jinan, 250100, China. .,School of Energy Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China
| | - Biyuan Wu
- Shandong Institute of Advanced Technology, Jinan, 250100, China. .,Basic Research Center, School of Power and Energy, Northwestern Polytechnical University, Xi'an, 710072, Shaanxi, China
| | - Xiaohu Wu
- Shandong Institute of Advanced Technology, Jinan, 250100, China.
| | - Ceji Fu
- LTCS and Department of Mechanics and Engineering Science, College of Engineering, Peking University, Beijing, 100871, China.
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34
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Yoon S, Seo M, Kim IS, Lee K, Woo K. Ultra-Stable and Highly Efficient White Light Emitting Diodes through CsPbBr 3 Perovskite Nanocrystals-Silica Composite Phosphor Functionalized with Surface Phenyl Molecules. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2206311. [PMID: 36461737 DOI: 10.1002/smll.202206311] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/15/2022] [Indexed: 06/17/2023]
Abstract
Poor stability of CsPbBr3 perovskite nanocrystals (NCs) to moisture/heat/light has significantly limited their application as a green phosphor, despite their outstanding luminescent properties. Here, a remarkably stable CsPbBr3 NCs-silica composite phosphor functionalized with surface phenyl molecules (CsPbBr3 -SiO2 Ph ) is synthesized by controlling low-temperature hydrolysis and condensation reaction of perhydropolysilazane in the presence of CsPbBr3 NCs followed by phenyl-functionalization. Through the process, CsPbBr3 NCs are confined in a compact silica matrix, which is impermeable to H2 O. The synthesis strategy is extended to a classical red quantum dot, CdZnSeS@ZnS NCs, to fabricate a white light emitting diode (WLED) consisting of CsPbBr3 -SiO2 Ph and CdZnSeS@ZnS-SiO2 Ph phosphor and silicone resin packaged on a commercial blue InGaN chip with luminous efficacy (LE) of 9.36 lm W-1 . The WLED undergoes enhancements in both green and red photoluminescence over time to achieve a highly efficient performance of 38.80 lm W-1 . More importantly, the WLED exhibits unprecedented operational stability of LE/LE0 = 94% after 101 h-operation at 20 mA (2.56 V). The ultra-high operational stability and efficient performance are mainly attributed to thermal curing and aging through which grain growth occurs as well as deactivation of defect states by permeated atmospheric O2 .
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Affiliation(s)
- Soyeon Yoon
- Nanophotonics Research Center, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
| | - Minjun Seo
- Nanophotonics Research Center, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
- Department of Chemistry, Korea University, Seoul, 02841, Republic of Korea
| | - In Soo Kim
- Nanophotonics Research Center, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
- KIST-SKKU Carbon-Neutral Research Center, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
| | - Kwangyeol Lee
- Department of Chemistry, Korea University, Seoul, 02841, Republic of Korea
| | - Kyoungja Woo
- Nanophotonics Research Center, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
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35
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Shao W, Zhu G, Wang X, Zhang Z, Lv H, Deng W, Zhang X, Liang H. Highly Efficient, Flexible, and Eco-Friendly Manganese(II) Halide Nanocrystal Membrane with Low Light Scattering for High-Resolution X-ray Imaging. ACS APPLIED MATERIALS & INTERFACES 2023; 15:932-941. [PMID: 36592377 DOI: 10.1021/acsami.2c16554] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Scintillators enable invisible X-ray to be converted into ultraviolet (UV)/visible light that can be collected using a sensor array and is the core component of the X-ray imaging system. However, combining the excellent properties of high light output, high spatial resolution, flexibility, non-toxicity, and cost effectiveness into a single X-ray scintillator remains a great challenge. Herein, a novel scintillator based on benzyltriphenylphosphonium manganese(II) bromide (BTP2MnBr4) nanocrystal (NC) membranes was developed by the in situ fabrication strategy. The long Mn-Mn distance provided by the large BTP cation allows the nonradiative energy dissipation in this manganese(II) halide to be significantly suppressed. As a result, the flexible BTP2MnBr4 NC scintillator shows an excellent linear response to the X-ray dose rate, a high light yield of ∼71,000 photon/MeV, a low detection limit of 86.2 nGyair/s at a signal-to-noise ratio of 3, a strong radiation hardness, and a long-term thermal stability. Thanks to the low Rayleigh scattering associated with the dense distribution of nanometer-scale emitters, light cross-talk in X-ray imaging is greatly suppressed. The impressively high-spatial resolution X-ray imaging (23.8 lp/mm at modulation transfer function = 0.2 and >20 lp/mm for a standard pattern chart) was achieved on this scintillator. Moreover, well-resolved 3D dynamic rendering X-ray projections were also successfully demonstrated using this scintillator. These results shed light on designing efficient, flexible, and eco-friendly scintillators for high-resolution X-ray imaging.
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Affiliation(s)
- Wenyi Shao
- School of Microelectronics, Dalian University of Technology, Dalian116024, China
| | - Guoyang Zhu
- School of Microelectronics, Dalian University of Technology, Dalian116024, China
| | - Xiang Wang
- School of Nuclear Science and Engineering, North China Electric Power University, Beijing102206, China
| | - Zhenzhong Zhang
- School of Microelectronics, Dalian University of Technology, Dalian116024, China
| | - Haocheng Lv
- School of Microelectronics, Dalian University of Technology, Dalian116024, China
| | - Weibo Deng
- School of Microelectronics, Dalian University of Technology, Dalian116024, China
| | - Xiaodong Zhang
- School of Nuclear Science and Engineering, North China Electric Power University, Beijing102206, China
| | - Hongwei Liang
- School of Microelectronics, Dalian University of Technology, Dalian116024, China
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36
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Ryu HJ, Shin M, Park M, Lee JS. In Situ Tetraalkylammonium Ligand Engineering of Organic-Inorganic Hybrid Perovskite Nanoparticles for Enhancing Long-Term Stability and Optical Tunability. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:13448-13455. [PMID: 36288550 DOI: 10.1021/acs.langmuir.2c01888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Organic-inorganic hybrid perovskite nanoparticles (OIHP NPs) have attracted scientific attention owing to their efficient photoluminescence with optical tunability, which is highly advantageous for optoelectronic applications. However, the limited long-term stability of OIHP NPs has significantly hindered their practical application. Despite several synthetic strategies and encapsulation methods to stabilize OIHP NPs, complicated multi-step procedures are often required. In this study, we introduce an in situ ligand engineering method for stabilizing and controlling the optical properties of OIHP NPs using tetraalkylammonium (TAA) halides with various molecular structures at different concentrations. Our one-pot ligand engineering substantially enhanced the stability of the OIHP NPs without post-synthetic processes. Moreover, in certain cases, approximately 90% of the initial photoluminescence (PL) intensity was preserved even after a month under ambient conditions (room temperature, 20-50% relative humidity). To determine the role of ligand engineering in stabilizing the OIHP NPs, the surface binding properties of the TAA ligands were thoroughly analyzed using Raman spectroscopy. Specifically, the permanent positive charge of the TAA cations and consequent effective electrostatic interactions with the surfaces of the OIHP NPs are pivotal for preserving the initial PL intensity. Our investigation is beneficial for developing OIHP nanomaterials with improved stability and controlled photoluminescence for various optoelectronic applications, such as light-emitting devices, photosensitizers, photodetectors, photocatalysis, and solar cells.
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Affiliation(s)
- Han-Jung Ryu
- Department of Materials Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Mingyeong Shin
- Department of Chemistry, Dong-A University, 37 Nakdong-daero 550beon-gil, Saha-gu, Busan 49315, Republic of Korea
- Department of Chemistry, College of Natural Science, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan 48513, Republic of Korea
| | - Myeongkee Park
- Department of Chemistry, College of Natural Science, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan 48513, Republic of Korea
| | - Jae-Seung Lee
- Department of Materials Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
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37
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Direct in situ photolithography of perovskite quantum dots based on photocatalysis of lead bromide complexes. Nat Commun 2022; 13:6713. [PMID: 36344550 PMCID: PMC9640639 DOI: 10.1038/s41467-022-34453-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 10/21/2022] [Indexed: 11/09/2022] Open
Abstract
Photolithography has shown great potential in patterning solution-processed nanomaterials for integration into advanced optoelectronic devices. However, photolithography of perovskite quantum dots (PQDs) has so far been hindered by the incompatibility of perovskite with traditional optical lithography processes where lots of solvents and high-energy ultraviolet (UV) light exposure are required. Herein, we report a direct in situ photolithography technique to pattern PQDs based on the photopolymerization catalyzed by lead bromide complexes. By combining direct photolithography with in situ fabrication of PQDs, this method allows to directly photolithograph perovskite precursors, avoiding the complicated lift-off processes and the destruction of PQDs by solvents or high-energy UV light, as PQDs are produced after lithography exposure. We further demonstrate that the thiol-ene free-radical photopolymerization is catalyzed by lead bromide complexes in the perovskite precursor solution, while no external initiators or catalysts are needed. Using direct in situ photolithography, PQD patterns with high resolution up to 2450 pixels per inch (PPI), excellent fluorescence uniformity, and good stability, are successfully demonstrated. This work opens an avenue for non-destructive direct photolithography of high-efficiency light-emitting PQDs, and potentially expands their application in various integrated optoelectronic devices. Perovskite nanomaterials may suffer degradation during conventional photolithography. Here, the authors report a non-destructive method for patterning perovskite quantum dots based on direct photopolymerization catalyzed by lead bromide complexes.
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38
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Zhang J, Ma H, Zhang X, Ma Y. Light-Induced Degradation of Metal-Free Organic Perovskites. J Phys Chem Lett 2022; 13:9848-9854. [PMID: 36251259 DOI: 10.1021/acs.jpclett.2c02572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Perovskites have attracted great interest in optoelectronics and photonics. As a new class of perovskites, metal-free perovskites have drawn growing attention due to the absence of toxic metal elements in them and their wide chemical diversity. Taking MDABCO-NH4I3 (MDBACO = N-methyl-N'-diazabicyclo[2.2.2]octonium) and MDABCO-NH4Br3 as examples, our first-principles calculations discover two fundamental features of metal-free perovskites that should be crucial for their applications. First, their photoluminescence emission originates from halogen vacancies, instead of the self-trapped exciton generally suggested. Second, in the vicinity of a halogen vacancy, optical excitation from the valence bands to the empty defect bands may cause release of H2 and NH3 molecules, which will not only lead to degradation of the perovskite but also quench its photoluminescence. To prevent the degradation and protect the optoelectronic and photonic performances of metal-free perovskites, short-wavelength illumination needs to be shielded.
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Affiliation(s)
- Jie Zhang
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Huizhong Ma
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Xiao Zhang
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Yuchen Ma
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
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39
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Yao J, Xu L, Wang S, Yang Z, Song J. Recent progress of single-halide perovskite nanocrystals for advanced displays. NANOSCALE 2022; 14:13990-14007. [PMID: 36125019 DOI: 10.1039/d2nr03872b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Light-emitting diodes based on lead halide perovskite nanocrystals (LHP NCs) have shown an astonishing increase in efficiency in just several years of academic research, reaching high external quantum efficiencies exceeding 20%. The extensive color-tunability and narrow emission bandwidth of LHP NCs, in particular, are of great importance in the creation of the next generation of ultra-high-definition displays, as defined by the Rec. 2020 standard recommendation. In fact, whereas the colour of LHP NCs can be easily tuned by the compositions of halogens, the ion migration in mixed-halide perovskites under the electric field will seriously affect the spectral stability and operational lifetimes of perovskite light-emitting diodes (PeLEDs). Therefore, it is essential to realize efficient colour-saturated PeLEDs based on single-halide perovskite NCs. In this review, we focus on the recent progress in LHP NC-based PeLEDs and highlight the strategy of tuning the spectral emission based on quantum confinement or cation alloying/doping in single-halide perovskite NCs. Finally, we will give an outlook on future research avenues for preparing high-efficiency pure green, red and blue PeLEDs based on single-halide perovskite NCs.
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Affiliation(s)
- Jisong Yao
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Daxue Road 75, Zhengzhou 450052, China.
| | - Leimeng Xu
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Daxue Road 75, Zhengzhou 450052, China.
| | - Shalong Wang
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Daxue Road 75, Zhengzhou 450052, China.
| | - Zhi Yang
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Daxue Road 75, Zhengzhou 450052, China.
| | - Jizhong Song
- Key Laboratory of Materials Physics of Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Daxue Road 75, Zhengzhou 450052, China.
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40
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Lou Q, Ni Q, Niu C, Wei J, Zhang Z, Shen W, Shen C, Qin C, Zheng G, Liu K, Zang J, Dong L, Shan C. Carbon Nanodots with Nearly Unity Fluorescent Efficiency Realized via Localized Excitons. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2203622. [PMID: 36002336 PMCID: PMC9596859 DOI: 10.1002/advs.202203622] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 08/03/2022] [Indexed: 05/19/2023]
Abstract
Carbon nanodots (CDs) have emerged as an alternative option for traditional nanocrystals due to their excellent optical properties and low toxicity. Nevertheless, high emission efficiency is a long-lasting pursuit for CDs. Herein, CDs with near-unity emission efficiency are prepared via atomic condensation of doped pyrrolic nitrogen, which can highly localize the excited states thus lead to the formation of bound excitons and the symmetry break of the π-electron conjugation. The short radiative lifetimes (<8 ns) and diffusion lengths (<50 nm) of the CDs imply that excitons can be efficiently localized by radiative recombination centers for a defect-insensitive emission of CDs. By incorporating the CDs into polystyrene, flexible light-converting films with a high solid-state quantum efficiency of 84% and good resistance to water, heating, and UV light are obtained. With the CD-polymer films as light conversion layers, CD-based white light-emitting diodes (WLEDs) with a luminous efficiency of 140 lm W-1 and a flat-panel illumination system with lighting sizes of more than 100 cm2 are achieved, matching state-of-the-art nanocrystal-based LEDs. These results pave the way toward carbon-based luminescent materials for solid-state lighting technology.
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Affiliation(s)
- Qing Lou
- Henan Key Laboratory of Diamond Optoelectronic Materials and DevicesKey Laboratory of Materials PhysicsMinistry of Education, and School of Physics and MicroelectronicsZhengzhou UniversityZhengzhou450052China
| | - Qingchao Ni
- Henan Key Laboratory of Diamond Optoelectronic Materials and DevicesKey Laboratory of Materials PhysicsMinistry of Education, and School of Physics and MicroelectronicsZhengzhou UniversityZhengzhou450052China
| | - Chunyao Niu
- Henan Key Laboratory of Diamond Optoelectronic Materials and DevicesKey Laboratory of Materials PhysicsMinistry of Education, and School of Physics and MicroelectronicsZhengzhou UniversityZhengzhou450052China
| | - Jianyong Wei
- Henan Key Laboratory of Diamond Optoelectronic Materials and DevicesKey Laboratory of Materials PhysicsMinistry of Education, and School of Physics and MicroelectronicsZhengzhou UniversityZhengzhou450052China
- State Key Laboratory of Advanced Optical Communication Systems and NetworksUniversity of Michigan–Shanghai Jiao Tong University Joint InstituteShanghai Jiao Tong UniversityShanghai200240China
| | - Zhuangfei Zhang
- Henan Key Laboratory of Diamond Optoelectronic Materials and DevicesKey Laboratory of Materials PhysicsMinistry of Education, and School of Physics and MicroelectronicsZhengzhou UniversityZhengzhou450052China
| | - Weixia Shen
- Henan Key Laboratory of Diamond Optoelectronic Materials and DevicesKey Laboratory of Materials PhysicsMinistry of Education, and School of Physics and MicroelectronicsZhengzhou UniversityZhengzhou450052China
| | - Chenglong Shen
- Henan Key Laboratory of Diamond Optoelectronic Materials and DevicesKey Laboratory of Materials PhysicsMinistry of Education, and School of Physics and MicroelectronicsZhengzhou UniversityZhengzhou450052China
| | - Chaochao Qin
- Henan Key Laboratory of Infrared Materials and Spectrum Measures and ApplicationsCollege of Physics and Materials ScienceHenan Normal UniversityXinxiang453007China
| | - Guangsong Zheng
- Henan Key Laboratory of Diamond Optoelectronic Materials and DevicesKey Laboratory of Materials PhysicsMinistry of Education, and School of Physics and MicroelectronicsZhengzhou UniversityZhengzhou450052China
| | - Kaikai Liu
- Henan Key Laboratory of Diamond Optoelectronic Materials and DevicesKey Laboratory of Materials PhysicsMinistry of Education, and School of Physics and MicroelectronicsZhengzhou UniversityZhengzhou450052China
| | - Jinhao Zang
- Henan Key Laboratory of Diamond Optoelectronic Materials and DevicesKey Laboratory of Materials PhysicsMinistry of Education, and School of Physics and MicroelectronicsZhengzhou UniversityZhengzhou450052China
| | - Lin Dong
- Henan Key Laboratory of Diamond Optoelectronic Materials and DevicesKey Laboratory of Materials PhysicsMinistry of Education, and School of Physics and MicroelectronicsZhengzhou UniversityZhengzhou450052China
| | - Chong‐Xin Shan
- Henan Key Laboratory of Diamond Optoelectronic Materials and DevicesKey Laboratory of Materials PhysicsMinistry of Education, and School of Physics and MicroelectronicsZhengzhou UniversityZhengzhou450052China
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41
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Avugadda S, Castelli A, Dhanabalan B, Fernandez T, Silvestri N, Collantes C, Baranov D, Imran M, Manna L, Pellegrino T, Arciniegas MP. Highly Emitting Perovskite Nanocrystals with 2-Year Stability in Water through an Automated Polymer Encapsulation for Bioimaging. ACS NANO 2022; 16:13657-13666. [PMID: 35914190 PMCID: PMC9527756 DOI: 10.1021/acsnano.2c01556] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 07/26/2022] [Indexed: 05/29/2023]
Abstract
Lead-based halide perovskite nanocrystals are highly luminescent materials, but their sensitivity to humid environments and their biotoxicity are still important challenges to solve. Here, we develop a stepwise approach to encapsulate representative CsPbBr3 nanocrystals into water-soluble polymer capsules. We show that our protocol can be extended to nanocrystals coated with different ligands, enabling an outstanding high photoluminescence quantum yield of ∼60% that is preserved over two years in capsules dispersed in water. We demonstrate that this on-bench strategy can be implemented on an automated platform with slight modifications, granting access to a faster and more reproducible fabrication process. Also, we reveal that the capsules can be exploited as photoluminescent probes for cell imaging at a dose as low as 0.3 μgPb/mL that is well below the toxicity threshold for Pb and Cs ions. Our approach contributes to expanding significantly the fields of applications of these luminescent materials including biology and biomedicine.
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Affiliation(s)
- Sahitya
Kumar Avugadda
- Nanomaterials
for Biomedical Applications and Nanochemistry, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Andrea Castelli
- Nanomaterials
for Biomedical Applications and Nanochemistry, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Balaji Dhanabalan
- Nanomaterials
for Biomedical Applications and Nanochemistry, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Tamara Fernandez
- Nanomaterials
for Biomedical Applications and Nanochemistry, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Niccolo Silvestri
- Nanomaterials
for Biomedical Applications and Nanochemistry, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Cynthia Collantes
- Nanomaterials
for Biomedical Applications and Nanochemistry, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
- Instituto
Interuniversitario de Investigación de Reconocimiento Molecular
y Desarrollo Tecnológico (IDM), Universitat
Politècnica de València-Universitat de València, Camino de Vera s/n, E46022 València, Spain
| | - Dmitry Baranov
- Nanomaterials
for Biomedical Applications and Nanochemistry, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Muhammad Imran
- Nanomaterials
for Biomedical Applications and Nanochemistry, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Liberato Manna
- Nanomaterials
for Biomedical Applications and Nanochemistry, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Teresa Pellegrino
- Nanomaterials
for Biomedical Applications and Nanochemistry, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Milena P. Arciniegas
- Nanomaterials
for Biomedical Applications and Nanochemistry, Istituto
Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
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42
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Sun J, Li T, Dong L, Hua Q, Chang S, Zhong H, Zhang L, Shan C, Pan C. Excitation-dependent perovskite/polymer films for ultraviolet visualization. Sci Bull (Beijing) 2022; 67:1755-1762. [PMID: 36546061 DOI: 10.1016/j.scib.2022.08.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 07/01/2022] [Accepted: 08/01/2022] [Indexed: 01/07/2023]
Abstract
Ultraviolet (UV) visualization has extensive applications in military and civil fields such as security monitoring, space communication, and wearable equipment for health monitoring in the internet of things (IoT). Due to their remarkable optoelectronic features, perovskite materials are regarded as promising candidates for UV light detecting and imaging. Herein, we report for the first time the excitation-dependent perovskite/polymer films with dynamically tunable fluorescence ranging from green to magenta by changing the UV excitation from 260 to 380 nm. And they still render dynamic multi-color UV light imaging with different polymer matrixes, halogen ratios, and cations of perovskite materials. The mechanism of its fluorescence change is related to the chloride vacancies in perovskite materials. A patterned multi-color ultraviolet visualization pad is also demonstrated for visible conversion of the UV region. This technique may provide a universal strategy for information securities, UV visualizations, and dynamic multi-color displays in the IoT.
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Affiliation(s)
- Junlu Sun
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100083, China; Henan Key Laboratory of Diamond Optoelectronic Materials and Devices Key Laboratory of Materials Physics (Ministry of Education), School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450001, China
| | - Tianshu Li
- State Key Laboratory of Integrated Optoelectronics, Key Laboratory of Automobile Materials (Ministry of Education), College of Materials Science and Engineering, Jilin University, Changchun 130012, China
| | - Lin Dong
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices Key Laboratory of Materials Physics (Ministry of Education), School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450001, China.
| | - Qilin Hua
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100083, China
| | - Shuai Chang
- MIIT Key Laboratory for Low-Dimensional Quantum Structure and Devices, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Haizheng Zhong
- MIIT Key Laboratory for Low-Dimensional Quantum Structure and Devices, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Lijun Zhang
- State Key Laboratory of Integrated Optoelectronics, Key Laboratory of Automobile Materials (Ministry of Education), College of Materials Science and Engineering, Jilin University, Changchun 130012, China.
| | - Chongxin Shan
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices Key Laboratory of Materials Physics (Ministry of Education), School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450001, China.
| | - Caofeng Pan
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100083, China.
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43
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Park JM, Lim S, Sun JY. Materials development in stretchable iontronics. SOFT MATTER 2022; 18:6487-6510. [PMID: 36000330 DOI: 10.1039/d2sm00733a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Stretchable iontronics have recently been developed as an ideal interface to promote the interaction between humans and devices. Since the materials that use ions as charge carriers are typically transparent and stretchable, they have been used to fabricate devices with diverse functions with intrinsic transparency and stretchability. With the development of device design, material design has also been investigated to mitigate the issues associated with ionic materials, such as their weak mechanical properties, poor electrical properties, or poor environmental stabilities. In this review, we describe the recent progress on the design of materials in stretchable iontronics. By classifying stretchable ionic materials into three types of components (ionic conductors, ionic semiconductors, and ionic insulators), the issues each component has and the strategies to solve them are introduced, specifically in terms of molecular interactions. We then discuss the existing hurdles and challenges to be handled and shine light on the possibilities and opportunities from the insight of molecular interactions.
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Affiliation(s)
- Jae-Man Park
- Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea.
| | - Sungsoo Lim
- Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea.
| | - Jeong-Yun Sun
- Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea.
- Research Institute of Advanced Materials (RIAM), Seoul National University, Seoul 08826, Republic of Korea
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44
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C G S, Mannekote Shivanna J, Schiffman JD, Mohan S, Budagumpi S, Balakrishna RG. Aqueous, Non-Polymer-Based Perovskite Quantum Dots for Bioimaging: Conserving Fluorescence and Long-Term Stability via Simple and Robust Synthesis. ACS APPLIED MATERIALS & INTERFACES 2022; 14:38471-38482. [PMID: 35975683 DOI: 10.1021/acsami.2c08087] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Perovskite quantum dots (PQDs) offer high photoluminescence quantum yields; however, due to their limited stability in aqueous media, to date their utilization in biomedical applications has been limited. The present work demonstrates highly fluorescent and stable aqueous PQDs that were synthesized using a facile engineered phase transfer method. Ligands were engineered to have a dual functionality, i.e., they could simultaneously mediate the strong binding of PQDs and the interactions with water molecules. The resultant water-soluble PQDs demonstrated robust structural and optical properties. The extracted aqueous PQDs remained stable in pellet form for 8 months, which was the entire test duration. Notably, 100% of their fluorescence was also retained. As a proof-of-concept experiment, the water-soluble PQDs were successfully tagged to polyclonal antibodies and used to image Escherichia coli cells in aqueous media. No structural or optical disturbance in PQDs was detected throughout the process. This work marks the beginning of the use of nonpolymeric aqueous PQDs and shows their strong potential to be used in biological applications.
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Affiliation(s)
- Sanjayan C G
- Centre for Nano and Material Sciences, Jain University, Bangalore 562112, Karnataka, India
| | | | - Jessica D Schiffman
- Department of Chemical Engineering, University of Massachusetts Amherst, Amherst, Massachusetts 01003-9303, United States
| | - Sakar Mohan
- Centre for Nano and Material Sciences, Jain University, Bangalore 562112, Karnataka, India
| | - Srinivasa Budagumpi
- Centre for Nano and Material Sciences, Jain University, Bangalore 562112, Karnataka, India
| | - R Geetha Balakrishna
- Centre for Nano and Material Sciences, Jain University, Bangalore 562112, Karnataka, India
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45
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Li JJ, Cui T, Yu J, Liang ZB, Liang Y, Li J, Chen S. Stable and large-scale organic-inorganic halide perovskite nanocrystal/polymer nanofiber films prepared via a green in situ fiber spinning chemistry method. NANOSCALE 2022; 14:11998-12006. [PMID: 35929526 DOI: 10.1039/d2nr01691e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Organic-inorganic halide perovskite nanocrystals (PNCs) have shown great advantages in recent years due to their tunable emission wavelengths, narrow full-width at half-maximum (FWHM) and high photoluminescence quantum yield (PLQY). However, PNCs still face the challenges of poor stability, difficulty in processing and generation of heavy metal wastes; therefore, it is necessary to develop a green synthetic method to prepare PNCs. Here, we present for the first time a facile fiber spinning chemistry (FSC) method for the rapid preparation of organic-inorganic halide PAN/MAPbX3 (MA = CH3NH3, X = Cl, Br and I) nanofiber films at room temperature. The FSC process utilizes spinning fibers as the reactor, and polymer solidification and the in situ generation of PNCs occur simultaneously with solvent evaporation during the spinning process. This method not only achieves a continuous large-scale preparation of PNC/polymer nanofiber films but also avoids the generation of heavy metal waste. The organic-inorganic halide PAN/MAPbX3 nanofiber films fabricated by FSC demonstrated tunable emission in the range of 464-612 nm and PLQY of up to 58%, and the fluorescence intensity remained essentially unchanged after 90 days of storage in the atmospheric environment. Interestingly, we successfully prepared high-efficiency white light-emitting diodes (WLEDs) and wide color gamut liquid crystal displays (LCDs) with a color gamut of 116.1% using PAN/MAPbBr3 nanofiber films as fluorescence conversion materials. This study provides a novel way to construct high-performance PNC/polymer fiber composites on a large scale.
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Affiliation(s)
- Jing-Jing Li
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu Key Laboratory of Fine Chemicals and Functional Polymer Materials, Nanjing Tech University, No. 5 Xin Mofan Road, Nanjing 210009, P. R. China.
| | - Tingting Cui
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu Key Laboratory of Fine Chemicals and Functional Polymer Materials, Nanjing Tech University, No. 5 Xin Mofan Road, Nanjing 210009, P. R. China.
| | - Jiafei Yu
- Department of General Surgery, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing, China.
| | - Zhi-Bin Liang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu Key Laboratory of Fine Chemicals and Functional Polymer Materials, Nanjing Tech University, No. 5 Xin Mofan Road, Nanjing 210009, P. R. China.
| | - Yunzheng Liang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu Key Laboratory of Fine Chemicals and Functional Polymer Materials, Nanjing Tech University, No. 5 Xin Mofan Road, Nanjing 210009, P. R. China.
| | - Jun Li
- Department of General Surgery, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing, China.
| | - Su Chen
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu Key Laboratory of Fine Chemicals and Functional Polymer Materials, Nanjing Tech University, No. 5 Xin Mofan Road, Nanjing 210009, P. R. China.
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46
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Pan Q, Hu J, Fu J, Lin Y, Zou C, Di D, Wang Y, Zhang Q, Cao M. Ultrahigh Stability of Perovskite Nanocrystals by Using Semiconducting Molecular Species for Displays. ACS NANO 2022; 16:12253-12261. [PMID: 35913128 DOI: 10.1021/acsnano.2c03062] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The instability of perovskite nanocrystals (NCs) to moisture, heat, and blue light severely hinders their commercial applications in quantum dot displays. Here, organic semiconducting molecules are introduced onto CsPbBr3 NCs, and the as-obtained CsPbBr3 NCs have a high photoluminescent quantum yield (PLQY) of 82% and extremely high stability in harsh commercial accelerated operational stability tests (such as high temperature (85 °C) and high humidity (85%)). The products can survive and maintain more than 80% of the initial PL intensity value under high temperature, high humidity, and long-term blue light irradiation for hundreds to thousands of hours. They are among the most stable perovskite NCs and even superior to those encapsulated by inert shells and commercial green-emissive CdSe@ZnS quantum dots (QDs). The mechanism of the exceptional stability has been proposed, mainly including the strong interaction and moderate photocarrier transfer between the quasi type II heterostructure formed by the molecule and CsPbBr3. By using these stable CsPbBr3 NCs, a QD-enhanced liquid crystal display prototype has been successfully fabricated with a wide color gamut. This work provides understandings on the functionality of ligands in perovskite fields and a promising prospect in perovskite-based display technologies.
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Affiliation(s)
- Qi Pan
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, People's Republic of China
| | - Jingjing Hu
- Suzhou Xingshuo Nanotech Co., Ltd. (Mesolight), 99 Jinjihu Road, Suzhou, 215123, Jiangsu, People's Republic of China
| | - Jie Fu
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, People's Republic of China
| | - Yi Lin
- Suzhou Xingshuo Nanotech Co., Ltd. (Mesolight), 99 Jinjihu Road, Suzhou, 215123, Jiangsu, People's Republic of China
| | - Chen Zou
- State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, International Research Center for Advanced Photonics, Zhejiang University, Hangzhou, 310027, Zhejiang, People's Republic of China
| | - Dawei Di
- State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, International Research Center for Advanced Photonics, Zhejiang University, Hangzhou, 310027, Zhejiang, People's Republic of China
| | - Yunjun Wang
- Suzhou Xingshuo Nanotech Co., Ltd. (Mesolight), 99 Jinjihu Road, Suzhou, 215123, Jiangsu, People's Republic of China
| | - Qiao Zhang
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, People's Republic of China
| | - Muhan Cao
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, People's Republic of China
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47
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Daliran S, Khajeh M, Oveisi AR, Albero J, García H. CsCu 2I 3 Nanoparticles Incorporated within a Mesoporous Metal-Organic Porphyrin Framework as a Catalyst for One-Pot Click Cycloaddition and Oxidation/Knoevenagel Tandem Reaction. ACS APPLIED MATERIALS & INTERFACES 2022; 14:36515-36526. [PMID: 35939817 PMCID: PMC9940116 DOI: 10.1021/acsami.2c04364] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 07/26/2022] [Indexed: 06/15/2023]
Abstract
Metal-organic frameworks (MOFs) and metal halide perovskites are currently under much investigation due to their unique properties and applications. Herein, an innovative strategy has been developed combining an iron-porphyrin MOF, PCN-222(Fe), and an in situ-grown CsCu2I3 nontoxic lead-free halide perovskite based on an earth-abundant metal that becomes incorporated within the MOF channels [CsCu2I3@PCN-222(Fe)]. Encapsulation was designed to decrease and control the particle size and increase the stability of CsCu2I3. The hybrid materials were characterized by various techniques including FE-SEM, elemental mapping and line scanning EDX, TEM, PXRD, UV-Vis DRS, BET surface area, XPS, and photoemission measurements. Hybrid CsCu2I3@PCN-222(Fe) materials were examined as heterogeneous multifunctional (photo)catalysts for copper(I)-catalyzed alkyne-azide cycloaddition (CuAAC) and one-pot selective photo-oxidation/Knoevenagel condensation cascade reaction. Interestingly, CsCu2I3@PCN-222(Fe) outperforms not only its individual components CsCu2I3 and PCN-222(Fe) but also other reported (photo)catalysts for these transformations. This is attributed to cooperation and synergistic effects of the PCN-222(Fe) host and CsCu2I3 nanocrystals. To understand the catalytic and photocatalytic mechanisms, control and inhibition experiments, electron paramagnetic resonance (EPR) measurements, and time-resolved phosphorescence were performed, revealing the main role of active species of Cu(I) in the click reaction and the superoxide ion (O2•-) and singlet oxygen (1O2) in the photocatalytic reaction.
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Affiliation(s)
- Saba Daliran
- Department
of Chemistry, University of Zabol, P.O. Box 98615-538, Zabol 98615-538, Iran
| | - Mostafa Khajeh
- Department
of Chemistry, University of Zabol, P.O. Box 98615-538, Zabol 98615-538, Iran
| | - Ali Reza Oveisi
- Department
of Chemistry, University of Zabol, P.O. Box 98615-538, Zabol 98615-538, Iran
| | - Josep Albero
- Departamento
de Química and Instituto de Tecnología Química
CSIC-UPV, Universitat Politècnica
de València, Av. de los Naranjos s/n, 46022 Valencia, Spain
| | - Hermenegildo García
- Departamento
de Química and Instituto de Tecnología Química
CSIC-UPV, Universitat Politècnica
de València, Av. de los Naranjos s/n, 46022 Valencia, Spain
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48
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Panda S, Soni A, Gupta V, Niranjan R, Panda D. PVDF-directed synthesis, stability and anion exchange of cesium lead bromide nanocrystals. Methods Appl Fluoresc 2022; 10. [PMID: 35961300 DOI: 10.1088/2050-6120/ac896b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 08/12/2022] [Indexed: 11/12/2022]
Abstract
Photoluminescent perovskite nanocrystals are mostly used along with base materials such as polymers for material processing and large-scale production purpose. However, the role of polymer in crystal structure engineering and thereby dictating the emission properties of lead halide perovskite nanocrystals is poorly understood. First, we have developed a polymer-directed antisolvent method for synthesis of halide perovskite crystals at room temperature. The thermodynamic stabilities of crystals drive the formation of perovskite composite crystal of orthorhombic Cs4PbBr6 and monoclinic CsPbBr3. Surprisingly, hydrophobic polyvinylidene fluoride (PVDF) can reduce the size of perovskite crystals to nano dimensions even at room temperature. On the other hand, perovskite nanocrystals, CsPbBr3 synthesized by modified hot-injection method undergo rapid encapsulation in PVDF matrices. The size of the encapsulated nanocrystal in PVDF matrices ranges in 88 ± 32 nm. Three types of radiative recombination are predominantly operative in nanocrystals-doped polymer- surface defect caused radiative recombination (0.6 - 3 ns), exciton recombination (3 - 15 ns), and shallow trap assisted recombination (10 - 50 ns). The interface created at nanocrystal and polymer plays a decisive role in populating the shallow trap states in perovskite-polymer nanocomposite. These nanocrystals have been shown to undergo fast halide exchange in aqueous hydroiodic acid solution and possess remarkable enhancement of water-/photo-stability. This research would pave way for their greater use in hydrogen production and light-emitting devices.
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Affiliation(s)
- Suvadeep Panda
- Sciences & Humanities, Rajiv Gandhi Institute of Petroleum Technology, Bahadurpur, Harbanshganj, Jais, Amethi, Rae Bareli, Rae Bareli, Uttar Pradesh, 229304, INDIA
| | - Amritansh Soni
- Rajiv Gandhi Institute of Petroleum Technology, Bahadurpur, Harbanshganj, Jais, Amethi, Rae Bareli, Rae Bareli, Uttar Pradesh, 229304, INDIA
| | - Vidhu Gupta
- Rajiv Gandhi Institute of Petroleum Technology, Bahadurpur, Harbanshganj, Jais, Amethi, Rae Bareli, Rae Bareli, Uttar Pradesh, 229304, INDIA
| | - Raghvendra Niranjan
- Ewing Christian College , University of Allahabad, Gaughat, Prayagraj, Allahabad, Uttar Pradesh, 211002, INDIA
| | - Debashis Panda
- Sciences & Humanities, Rajiv Gandhi Institute of Petroleum Technology, Bahadurpur, Harbanshganj, Jais, Amethi, Rae Bareli, Rae Bareli, 229304, INDIA
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49
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Otero-Martínez C, Fiuza-Maneiro N, Polavarapu L. Enhancing the Intrinsic and Extrinsic Stability of Halide Perovskite Nanocrystals for Efficient and Durable Optoelectronics. ACS APPLIED MATERIALS & INTERFACES 2022; 14:34291-34302. [PMID: 35471818 PMCID: PMC9353780 DOI: 10.1021/acsami.2c01822] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Over the past few years, metal halide perovskite nanocrystals have been at the forefront of colloidal semiconductor nanomaterial research because of their fascinating properties and potential applications. However, their intrinsic phase instability and chemical degradation under external exposures (high temperature, water, oxygen, and light) are currently limiting the real-world applications of perovskite optoelectronics. To overcome these stability issues, researchers have reported various strategies such as doping and encapsulation. The doping improves the optical and photoactive phase stability, whereas the encapsulation protects the perovskite NCs from external exposures. This perspective discusses the rationale of various strategies to enhance the stability of perovskite NCs and suggests possible future directions for the fabrication of optoelectronic devices with long-term stability while maintaining high efficiency.
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Affiliation(s)
- Clara Otero-Martínez
- Materials
Chemistry and Physics Group, Department of Physical Chemistry Campus
Universitario As Lagoas, CINBIO, Universidade
de Vigo, Marcosende 36310, Vigo, Spain
| | - Nadesh Fiuza-Maneiro
- Materials
Chemistry and Physics Group, Department of Physical Chemistry Campus
Universitario As Lagoas, CINBIO, Universidade
de Vigo, Marcosende 36310, Vigo, Spain
| | - Lakshminarayana Polavarapu
- Materials
Chemistry and Physics Group, Department of Physical Chemistry Campus
Universitario As Lagoas, CINBIO, Universidade
de Vigo, Marcosende 36310, Vigo, Spain
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50
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Wu XG, Ji H, Yan X, Zhong H. Industry outlook of perovskite quantum dots for display applications. NATURE NANOTECHNOLOGY 2022; 17:813-816. [PMID: 35869367 DOI: 10.1038/s41565-022-01163-8] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Affiliation(s)
- Xian-Gang Wu
- MIIT Key Laboratory for Low-Dimensional Quantum Structure and Devices, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, China
| | - Honglei Ji
- TCL Electronics Holdings Limited, Shenzhen, China
| | - Xiaolin Yan
- TCL Electronics Holdings Limited, Shenzhen, China
| | - Haizheng Zhong
- MIIT Key Laboratory for Low-Dimensional Quantum Structure and Devices, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, China.
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