1
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Wang Y, Li MY, Liu S, Ma Y, Sun B, Wang L, Lu H, Wen X, Liu S, Ding X. A Novel Strategy for the Synthesis of High Stability of Luminescent Zero Dimensional-Two Dimensional CsPbBr 3 Quantum Dot/1,4-bis(4-methylstyryl)benzene Nanoplate Heterostructures at an Atmospheric Condition. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2723. [PMID: 37836364 PMCID: PMC10574592 DOI: 10.3390/nano13192723] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 09/27/2023] [Accepted: 09/29/2023] [Indexed: 10/15/2023]
Abstract
Perovskite quantum dots (QDs), emerging with excellent bright-green photoluminescence (PL) and a large absorption coefficient, are of great potential for the fabrication of light sources in underwater optical wireless communication systems. However, the instability caused by low formation energy and abundant surface traps is still a major concern for perovskite-based light sources in underwater conditions. Herein, we propose ultra-stable zero dimensional-two dimensional (0D-2D) CsPbBr3 QD/1,4-bis(4-methylstyryl)benzene (p-MSB) nanoplate (NP) heterostructures synthesized via a facile approach at room temperature in air. CsPbBr3 QDs can naturally nucleate on the p-MSB NP toluene solution, and the radiative combination is drastically intensified owing to the electron transfer within the typical type-II heterostructures, leading to a sharply increased PLQY of the heterostructure thin films up to 200% compared with the pristine sample. The passivation of defects within CsPbBr3 QDs can be effectively realized with the existence of p-MSB NPs, and thus the obviously improved PL is steadily witnessed in an ambient atmosphere and thermal environment. Meanwhile, the enhanced humidity stability and a peak EQE of 9.67% suggests a synergetic strategy for concurrently addressing the knotty problems on unsatisfied luminous efficiency and stability of perovskites for high-performance green-emitting optoelectronic devices in underwater applications.
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Affiliation(s)
- Yanran Wang
- Donghai Laboratory, Zhoushan 316021, China;
- School of Science, Wuhan University of Technology, Wuhan 430070, China; (S.L.); (Y.M.); (B.S.); (L.W.); (H.L.); (X.W.)
| | - Ming-yu Li
- Donghai Laboratory, Zhoushan 316021, China;
- School of Science, Wuhan University of Technology, Wuhan 430070, China; (S.L.); (Y.M.); (B.S.); (L.W.); (H.L.); (X.W.)
| | - Shijie Liu
- School of Science, Wuhan University of Technology, Wuhan 430070, China; (S.L.); (Y.M.); (B.S.); (L.W.); (H.L.); (X.W.)
| | - Yuan Ma
- School of Science, Wuhan University of Technology, Wuhan 430070, China; (S.L.); (Y.M.); (B.S.); (L.W.); (H.L.); (X.W.)
| | - Bo Sun
- School of Science, Wuhan University of Technology, Wuhan 430070, China; (S.L.); (Y.M.); (B.S.); (L.W.); (H.L.); (X.W.)
| | - Liangyu Wang
- School of Science, Wuhan University of Technology, Wuhan 430070, China; (S.L.); (Y.M.); (B.S.); (L.W.); (H.L.); (X.W.)
| | - Haifei Lu
- School of Science, Wuhan University of Technology, Wuhan 430070, China; (S.L.); (Y.M.); (B.S.); (L.W.); (H.L.); (X.W.)
| | - Xiaoyan Wen
- School of Science, Wuhan University of Technology, Wuhan 430070, China; (S.L.); (Y.M.); (B.S.); (L.W.); (H.L.); (X.W.)
| | - Sisi Liu
- School of Science, Wuhan University of Technology, Wuhan 430070, China; (S.L.); (Y.M.); (B.S.); (L.W.); (H.L.); (X.W.)
| | - Xumin Ding
- Advanced Microscopy and Instrumentation Research Center, School of Instrumentation Science and Engineering, Harbin Institute of Technology, Harbin 150090, China;
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2
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Brites CDS, Marin R, Suta M, Carneiro Neto AN, Ximendes E, Jaque D, Carlos LD. Spotlight on Luminescence Thermometry: Basics, Challenges, and Cutting-Edge Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2302749. [PMID: 37480170 DOI: 10.1002/adma.202302749] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 05/05/2023] [Indexed: 07/23/2023]
Abstract
Luminescence (nano)thermometry is a remote sensing technique that relies on the temperature dependency of the luminescence features (e.g., bandshape, peak energy or intensity, and excited state lifetimes and risetimes) of a phosphor to measure temperature. This technique provides precise thermal readouts with superior spatial resolution in short acquisition times. Although luminescence thermometry is just starting to become a more mature subject, it exhibits enormous potential in several areas, e.g., optoelectronics, photonics, micro- and nanofluidics, and nanomedicine. This work reviews the latest trends in the field, including the establishment of a comprehensive theoretical background and standardized practices. The reliability, repeatability, and reproducibility of the technique are also discussed, along with the use of multiparametric analysis and artificial-intelligence algorithms to enhance thermal readouts. In addition, examples are provided to underscore the challenges that luminescence thermometry faces, alongside the need for a continuous search and design of new materials, experimental techniques, and analysis procedures to improve the competitiveness, accessibility, and popularity of the technology.
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Affiliation(s)
- Carlos D S Brites
- Phantom-g, CICECO, Departamento de Física, Universidade de Aveiro, Campus Santiago, Aveiro, 3810-193, Portugal
| | - Riccardo Marin
- Departamento de Física de Materiales, Nanomaterials for Bioimaging Group (NanoBIG), Facultad de Ciencias, Universidad Autónoma de Madrid, Madrid, 28049, Spain
- Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, Madrid, 28049, Spain
| | - Markus Suta
- Inorganic Photoactive Materials, Institute of Inorganic Chemistry and Structural Chemistry, Heinrich Heine University Düsseldorf, Universitätsstraße 1, 40225, Düsseldorf, Germany
| | - Albano N Carneiro Neto
- Phantom-g, CICECO, Departamento de Física, Universidade de Aveiro, Campus Santiago, Aveiro, 3810-193, Portugal
| | - Erving Ximendes
- Departamento de Física de Materiales, Nanomaterials for Bioimaging Group (NanoBIG), Facultad de Ciencias, Universidad Autónoma de Madrid, Madrid, 28049, Spain
- Nanomaterials for Bioimaging Group (NanoBIG), Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Hospital Ramón y Cajal, Madrid, 28034, Spain
| | - Daniel Jaque
- Departamento de Física de Materiales, Nanomaterials for Bioimaging Group (NanoBIG), Facultad de Ciencias, Universidad Autónoma de Madrid, Madrid, 28049, Spain
- Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, Madrid, 28049, Spain
- Nanomaterials for Bioimaging Group (NanoBIG), Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Hospital Ramón y Cajal, Madrid, 28034, Spain
| | - Luís D Carlos
- Phantom-g, CICECO, Departamento de Física, Universidade de Aveiro, Campus Santiago, Aveiro, 3810-193, Portugal
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3
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Rao L, Sun B, Liu Y, Zhong G, Wen M, Zhang J, Fu T, Wang S, Wang F, Niu X. Highly Stable and Photoluminescent CsPbBr 3/Cs 4PbBr 6 Composites for White-Light-Emitting Diodes and Visible Light Communication. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:355. [PMID: 36678108 PMCID: PMC9861840 DOI: 10.3390/nano13020355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 12/29/2022] [Accepted: 01/12/2023] [Indexed: 06/17/2023]
Abstract
Inorganic lead halide perovskite is one of the most excellent fluorescent materials, and it plays an essential role in high-definition display and visible light communication (VLC). Its photochromic properties and stability determine the final performance of light-emitting devices. However, efficiently synthesizing perovskite with high quality and stability remains a significant challenge. Here, we develop a facile and environmentally friendly method for preparing high-stability and strong-emission CsPbBr3/Cs4PbBr6 composites using ultrasonication and liquid paraffin. Tuning the contents of liquid paraffin, bright-emission CsPbBr3/Cs4PbBr6 composite powders with a maximum PLQY of 74% were achieved. Thanks to the protection of the Cs4PbBr6 matrix and liquid paraffin, the photostability, thermostability, and polar solvent stability of CsPbBr3/Cs4PbBr6-LP are significantly improved compared to CsPbBr3 quantum dots and CsPbBr3/Cs4PbBr6 composites that were prepared without liquid paraffin. Moreover, the fabricated CsPbBr3/Cs4PbBr6-LP-based WLEDs show excellent luminescent performance with a power efficiency of 129.5 lm/W and a wide color gamut, with 121% of the NTSC and 94% of the Rec. 2020, demonstrating a promising candidate for displays. In addition, the CsPbBr3/Cs4PbBr6-LP-based WLEDs were also demonstrated in a VLC system. The results suggested the great potential of these high-performance WLEDs as an excitation light source to achieve VLC.
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Affiliation(s)
- Longshi Rao
- Department of Mechanical Engineering, College of Engineering, Shantou University, Shantou 515063, China
- Intelligent Manufacturing Key Laboratory of Ministry of Education, Shantou University, Shantou 515063, China
| | - Bin Sun
- Department of Mechanical Engineering, College of Engineering, Shantou University, Shantou 515063, China
- Intelligent Manufacturing Key Laboratory of Ministry of Education, Shantou University, Shantou 515063, China
| | - Yang Liu
- Department of Mechanical Engineering, College of Engineering, Shantou University, Shantou 515063, China
- Intelligent Manufacturing Key Laboratory of Ministry of Education, Shantou University, Shantou 515063, China
| | - Guisheng Zhong
- Department of Mechanical Engineering, College of Engineering, Shantou University, Shantou 515063, China
- Intelligent Manufacturing Key Laboratory of Ministry of Education, Shantou University, Shantou 515063, China
| | - Mingfu Wen
- Department of Mechanical Engineering, College of Engineering, Shantou University, Shantou 515063, China
- Intelligent Manufacturing Key Laboratory of Ministry of Education, Shantou University, Shantou 515063, China
| | - Jiayang Zhang
- Department of Mechanical Engineering, College of Engineering, Shantou University, Shantou 515063, China
- Intelligent Manufacturing Key Laboratory of Ministry of Education, Shantou University, Shantou 515063, China
| | - Ting Fu
- Hubei Key Laboratory of Mechanical Transmission and Manufacturing Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Shuangxi Wang
- Department of Mechanical Engineering, College of Engineering, Shantou University, Shantou 515063, China
- Intelligent Manufacturing Key Laboratory of Ministry of Education, Shantou University, Shantou 515063, China
| | - Fengtao Wang
- Department of Mechanical Engineering, College of Engineering, Shantou University, Shantou 515063, China
- Intelligent Manufacturing Key Laboratory of Ministry of Education, Shantou University, Shantou 515063, China
| | - Xiaodong Niu
- Department of Mechanical Engineering, College of Engineering, Shantou University, Shantou 515063, China
- Intelligent Manufacturing Key Laboratory of Ministry of Education, Shantou University, Shantou 515063, China
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4
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Cao Y, Shao Y, Zhang J, Chen C, Wang Q. The photothermal stability study of silica-coated CsPbBr3 perovskite nanocrystals. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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5
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Pakhira M, Ghosh S, Ghosh S, Chatterjee DP, Nandi AK. Development of poly(vinylidene fluoride) graft random copolymer membrane for antifouling and antimicrobial applications. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.05.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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6
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Li Q, Shen D, Luo C, Zheng Z, Xia W, Ma W, Li J, Yang Y, Chen S, Chen Y. Ultra-Thermostability of Spatially Confined and Fully Protected Perovskite Nanocrystals by In Situ Crystallization. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2107452. [PMID: 35212138 DOI: 10.1002/smll.202107452] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 01/27/2022] [Indexed: 06/14/2023]
Abstract
Although all-inorganic perovskite materials present multiple fascinating optical properties, their poor stability undermines their potential application in the field of multi-color display. Herein, spatially confined CsPbBr3 nanocrystals are in situ crystallized within uniform mesoporous SiO2 nanospheres (MSNs) to regulate their size distribution, passivate their surface defects, shield them from water/oxygen, and more importantly, enhance their thermotolerance. As a result, the remnant PL intensity of the prepared spatially confined perovskite (CsPbBr3 ) nanocrystals by in situ crystallization within uniform mesoporous SiO2 nanospheres (SCP@MSNs) powders can be maintained over 98% of its initial value even after being immersed in harsh conditions (0.1 m HCl or 0.1 m NaOH) for 60 days. Furthermore, the prepared SCP@MSNs-PDMS film demonstrates astonishing thermostability by maintaining almost consistent room temperature PL intensities after continuous heating-cooling cycles between 200 and 25 °C, which would greatly improve its processability during potential industrial manufacturing. The fabricated LCD backlit based on SCP@MSNs covers 124% of NTSC standard and 95.6% of Rec. 2020 standard, indicating its great potential in practical display field.
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Affiliation(s)
- Qinyi Li
- School of Optoelectronic Science and Engineering & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, 215006, China
| | - Dongyang Shen
- School of Optoelectronic Science and Engineering & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, 215006, China
| | - Chengzhao Luo
- School of Optoelectronic Science and Engineering & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, 215006, China
| | - Zhishuai Zheng
- School of Optoelectronic Science and Engineering & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, 215006, China
| | - Wenlin Xia
- School of Optoelectronic Science and Engineering & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, 215006, China
| | - Wenchen Ma
- School of Optoelectronic Science and Engineering & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, 215006, China
| | - Jie Li
- School of Optoelectronic Science and Engineering & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, 215006, China
| | - Yixing Yang
- TCL Corporate Research, 1001 Zhongshan Park Road, Nanshan District, Shenzhen, 518067, China
| | - Song Chen
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren'ai Road, Suzhou Industrial Park, Suzhou, 215123, China
| | - Yu Chen
- School of Optoelectronic Science and Engineering & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, 215006, China
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7
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Ren J, Meijerink A, Zhou X, Wu J, Zhang G, Wang Y. In Situ Embedding Synthesis of CsPbBr 3@Ce-MOF@SiO 2 Nanocomposites for High Efficiency Light-Emitting Diodes: Suppressing Reabsorption Losses through the Waveguiding Effect. ACS APPLIED MATERIALS & INTERFACES 2022; 14:3176-3188. [PMID: 34981922 DOI: 10.1021/acsami.1c20804] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
All-inorganic perovskite quantum dots (PQDs), which possess outstanding photophysical properties, are regarded as promising materials for optoelectronic applications. However, the poor light conversion efficiency and severe stability problem hinder their widespread applications. In this work, a novel encapsulation strategy is developed through the in situ growth of CsPbX3 PQDs in presynthesized mesoporous cerium-based metal organic frameworks (Ce-MOFs) and further silane hydrolysis-encapsulation, generating stable CsPbX3@Ce-MOF@SiO2 composites with greatly enhanced light conversion efficiency. Moreover, the simulation results suggest that the pore boundary of Ce-MOFs has a strong waveguide effect on the incident PQD light, constraining PQD light inside the bodies of Ce-MOFs and suppressing reabsorption losses, thus increasing the overall light conversion efficiency of PQDs. Meanwhile, the Ce-MOF@SiO2 protective shell effectively improves the stability by blocking internally embedded PQDs from the harmful external environment. Further, the obtained white-light-emitting diode shows an ultrahigh luminous efficiency of 87.8 lm/W, which demonstrates their great potential in optoelectronic applications.
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Affiliation(s)
- Jiejun Ren
- Department of Materials Science, School of Physical Science and Technology, National and Local Joint Engineering Laboratory for Optical Conversion Materials and Technology of National Development and Reform Commission, Lanzhou University, Lanzhou 730000, China
| | - Andries Meijerink
- Department of Materials Science, School of Physical Science and Technology, National and Local Joint Engineering Laboratory for Optical Conversion Materials and Technology of National Development and Reform Commission, Lanzhou University, Lanzhou 730000, China
- Condensed Matter and Interfaces, Debye Institute for Nanomaterials Science, Utrecht University, P.O. Box 80000, 3508 TA Utrecht, The Netherlands
| | - Xiaopeng Zhou
- Department of Materials Science, School of Physical Science and Technology, National and Local Joint Engineering Laboratory for Optical Conversion Materials and Technology of National Development and Reform Commission, Lanzhou University, Lanzhou 730000, China
| | - Jiapeng Wu
- Department of Materials Science, School of Physical Science and Technology, National and Local Joint Engineering Laboratory for Optical Conversion Materials and Technology of National Development and Reform Commission, Lanzhou University, Lanzhou 730000, China
| | - Gangyi Zhang
- Department of Materials Science, School of Physical Science and Technology, National and Local Joint Engineering Laboratory for Optical Conversion Materials and Technology of National Development and Reform Commission, Lanzhou University, Lanzhou 730000, China
| | - Yuhua Wang
- Department of Materials Science, School of Physical Science and Technology, National and Local Joint Engineering Laboratory for Optical Conversion Materials and Technology of National Development and Reform Commission, Lanzhou University, Lanzhou 730000, China
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8
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Liang S, Zhang M, Biesold GM, Choi W, He Y, Li Z, Shen D, Lin Z. Recent Advances in Synthesis, Properties, and Applications of Metal Halide Perovskite Nanocrystals/Polymer Nanocomposites. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2005888. [PMID: 34096108 DOI: 10.1002/adma.202005888] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 02/18/2021] [Indexed: 05/27/2023]
Abstract
Metal halide perovskite nanocrystals (PNCs) have recently garnered tremendous research interest due to their unique optoelectronic properties and promising applications in photovoltaics and optoelectronics. Metal halide PNCs can be combined with polymers to create nanocomposites that carry an array of advantageous characteristics. The polymer matrix can bestow stability, stretchability, and solution-processability while the PNCs maintain their size-, shape- and composition-dependent optoelectronic properties. As such, these nanocomposites possess great promise for next-generation displays, lighting, sensing, biomedical technologies, and energy conversion. The recent advances in metal halide PNC/polymer nanocomposites are summarized here. First, a variety of synthetic strategies for crafting PNC/polymer nanocomposites are discussed. Second, their array of intriguing properties is examined. Third, the broad range of applications of PNC/polymer nanocomposites is highlighted, including light-emitting diodes (LEDs), lasers, and scintillators. Finally, an outlook on future research directions and challenges in this rapidly evolving field are presented.
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Affiliation(s)
- Shuang Liang
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Mingyue Zhang
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Gill M Biesold
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Woosung Choi
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Yanjie He
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Zili Li
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Dingfeng Shen
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Zhiqun Lin
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
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9
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Huang Y, Lai Z, Jin J, Lin F, Li F, Lin L, Tian D, Wang Y, Xie R, Chen X. Ultrasensitive Temperature Sensing Based on Ligand-Free Alloyed CsPbCl x Br 3-x Perovskite Nanocrystals Confined in Hollow Mesoporous Silica with High Density of Halide Vacancies. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2103425. [PMID: 34647396 DOI: 10.1002/smll.202103425] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 07/30/2021] [Indexed: 06/13/2023]
Abstract
Temperature sensing based on fluorescent semiconductor nanocrystals has recently received immense attention. Enhancing the trap-facilitated thermal quenching of the fluorescence should be an effective approach to achieve high sensitivity for temperature sensing. Compared with conventional semiconductor nanocrystals, the defect-tolerant feature of lead halide perovskite nanocrystals (LHP NCs) endows them with high density of defects. Here, hollow mesoporous silica (h-SiO2 ) template-assisted ligand-free synthesis and halogen manipulation (chloride-importing) are proposed to fabricate highly defective yet fluorescent CsPbCl1.2 Br1.8 NCs confined in h-SiO2 (CsPbCl1.2 Br1.8 NCs@h-SiO2 ) for ultrasensitive temperature sensing. The trap barrier heights, exciton-phonon scattering, and trap state filling process in the CsPbCl1.2 Br1.8 NCs@h-SiO2 and CsPbBr3 NCs@h-SiO2 are studied to illustrate the higher temperature sensitivity of CsPbCl1.2 Br1.8 NCs@h-SiO2 at physiological temperature range. By integrating the thermal-sensitive CsPbCl1.2 Br1.8 NCs@h-SiO2 and thermal-insensitive K2 SiF6 :Mn4+ phosphor into the flexible ethylene-vinyl acetate polymer matrix, ratiometric temperature sensing from 30.0 °C to 45.0 °C is demonstrated with a relative temperature sensitivity up to 13.44% °C-1 at 37.0 °C. The composite film shows high potential as a thermometer for monitoring the body temperature. This work demonstrates the unparalleled temperature sensing performance of LHP NCs and provides new inspiration on switching the defects into advantages in sensing applications.
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Affiliation(s)
- Yipeng Huang
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Zhiwei Lai
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Jingwen Jin
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Fangyuan Lin
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Feiming Li
- College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou, 363000, China
| | - Longhui Lin
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Dongjie Tian
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Yiru Wang
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Rongjun Xie
- College of Materials, Xiamen University, Xiamen, 361005, China
| | - Xi Chen
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, 361005, China
- Shenzhen Research Institute of Xiamen University, Shenzhen, 518000, China
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10
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Xing K, Cao S, Yuan X, Zeng R, Li H, Zou B, Zhao J. Thermal and photo stability of all inorganic lead halide perovskite nanocrystals. Phys Chem Chem Phys 2021; 23:17113-17128. [PMID: 34346439 DOI: 10.1039/d1cp02119b] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Inorganic lead halide perovskite (ILHP) nanocrystals (NCs) show great potential in solid state lighting and next generation display technology due to their excellent optical properties. However, almost all ILHP NCs are still facing the problem of unstable luminescence properties caused by heating and/or UV illumination. Further improving the thermal and photo stability of ILHP NCs has become the most urgent challenge for their practical application. This Perspective review specifically focuses on the thermal and photo stability of ILHP NCs, discusses and analyzes the factors that affect the thermal and photo stability of ILHP NCs from the perspective of surface ligands and structure composition, summarizes the current strategies to improve the thermal and photo stability of ILHP NCs, and presents the key challenges and perspectives on the research for the improvement of thermal and photo stability of ILHP NCs.
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Affiliation(s)
- Ke Xing
- School of Physical Science and Technology, MOE Key Laboratory of New Processing Technology for Non-ferrous Metals and Materials, Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University, Nanning 530004, China.
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11
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Yen MC, Lee CJ, Liu KH, Peng Y, Leng J, Chang TH, Chang CC, Tamada K, Lee YJ. All-inorganic perovskite quantum dot light-emitting memories. Nat Commun 2021; 12:4460. [PMID: 34294699 PMCID: PMC8298456 DOI: 10.1038/s41467-021-24762-w] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 07/06/2021] [Indexed: 11/11/2022] Open
Abstract
Field-induced ionic motions in all-inorganic CsPbBr3 perovskite quantum dots (QDs) strongly dictate not only their electro-optical characteristics but also the ultimate optoelectronic device performance. Here, we show that the functionality of a single Ag/CsPbBr3/ITO device can be actively switched on a sub-millisecond scale from a resistive random-access memory (RRAM) to a light-emitting electrochemical cell (LEC), or vice versa, by simply modulating its bias polarity. We then realize for the first time a fast, all-perovskite light-emitting memory (LEM) operating at 5 kHz by pairing such two identical devices in series, in which one functions as an RRAM to electrically read the encoded data while the other simultaneously as an LEC for a parallel, non-contact optical reading. We further show that the digital status of the LEM can be perceived in real time from its emission color. Our work opens up a completely new horizon for more advanced all-inorganic perovskite optoelectronic technologies. Electric field induced ion migration is a well-known phenomenon in perovskite, but the consequences are notorious, and thus needs to be prevented. Here, on the other hand, the authors cleverly manipulate this event for realising resistive random-access memory and light-emitting electrochemical cell in one device based on CsPbBr3 quantum dots.
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Affiliation(s)
- Meng-Cheng Yen
- Institute of Electro-Optical Engineering, National Taiwan Normal University, Taipei, Taiwan
| | - Chia-Jung Lee
- Institute of Electro-Optical Engineering, National Taiwan Normal University, Taipei, Taiwan
| | - Kang-Hsiang Liu
- Institute of Electro-Optical Engineering, National Taiwan Normal University, Taipei, Taiwan
| | - Yi Peng
- Institute of Electro-Optical Engineering, National Taiwan Normal University, Taipei, Taiwan
| | - Junfu Leng
- Institute for Materials Chemistry and Engineering (IMCE), Kyushu University, Fukuoka, Japan
| | - Tzu-Hsuan Chang
- Graduate Institute of Electronics Engineering, National Taiwan University, Taipei, Taiwan
| | - Chun-Chieh Chang
- Institute of Electro-Optical Engineering, National Taiwan Normal University, Taipei, Taiwan.
| | - Kaoru Tamada
- Institute for Materials Chemistry and Engineering (IMCE), Kyushu University, Fukuoka, Japan. .,Advanced Institute for Materials Research (AIMR), Tohoku University, Sendai, Japan.
| | - Ya-Ju Lee
- Institute of Electro-Optical Engineering, National Taiwan Normal University, Taipei, Taiwan.
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12
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Shi S, Cao L, Gao H, Tian Z, Bi W, Geng C, Xu S. Solvent- and initiator-free fabrication of efficient and stable perovskite-polystyrene surface-patterned thin films for LED backlights. NANOSCALE 2021; 13:9381-9390. [PMID: 34002177 DOI: 10.1039/d0nr08759a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
We report a one-pot route for the synthesis of CsPbBr3 perovskite nanocrystals (PNCs) in styrene to form a glue-like polystyrene (PS) pre-polymer incorporating mono-dispersed PNCs. The pre-polymer enables solvent- and initiator-free fabricating and patterning PNC-PS light down-conversion films for liquid crystal display application. The mechanistic study reveals that the styrene molecules adsorbed on the PNC surface undergo self-initiated polymerization in the pre-polymerization process, forming stable surface capsulation over the PNCs. The PNC-PS pre-polymer and composite film display high photoluminescent quantum yield (PLQY) and resistance to air, light irradiation and water. The micropatterned PNC-PS film with a period of 1000 nm was fabricated through imprinting of the pre-polymer. The micropatterned thin film displays an enlarged viewing angle, improved light distribution and PLQY of >90%. The backlight employing the PNC-PS film displays bright green color and a wide color gamut of >120% NTSC. This solvent-free and one-pot strategy could find promising potential in the development of diverse luminescent nanocomposites to meet the requirements of micro/nano-manufacturing and high performance display application.
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Affiliation(s)
- Shuangshuang Shi
- Tianjin Key Laboratory of Electronic Materials and Devices, School of Electronics and Information Engineering, Hebei University of Technology, 5340 Xiping Road, Tianjin, 300401, P. R. China.
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13
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Hsu SC, Huang YM, Huang CP, Lee TY, Cho YY, Liu YH, Manikandan A, Chueh YL, Chen TM, Kuo HC, Lin CC. Improved Long-Term Reliability of a Silica-Encapsulated Perovskite Quantum-Dot Light-Emitting Device with an Optically Pumped Remote Film Package. ACS OMEGA 2021; 6:2836-2845. [PMID: 33553901 PMCID: PMC7860076 DOI: 10.1021/acsomega.0c05139] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 01/08/2021] [Indexed: 05/22/2023]
Abstract
In this study, inorganic perovskite (CsPbBr3) quantum dots are wrapped in SiO2 to provide better performance against external erosion. Long-term storage (250 days) is demonstrated with very little changes in the illumination capability of these quantum dots. While in the continuous aging procedure, different package architectures can achieve very different lifetimes. As long as 6000 h of lifetime can be expected from these quantum dots, but the blue shift of emission wavelength still needs more investigation.
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Affiliation(s)
- Shun-Chieh Hsu
- Institute
of Photonic System, College of Photonics, National Chiao Tung University, No. 301, Gaofa 3rd Road, Guiren
District, Tainan 71150, Taiwan
| | - Yu-Ming Huang
- Institute
of Photonic System, College of Photonics, National Chiao Tung University, No. 301, Gaofa 3rd Road, Guiren
District, Tainan 71150, Taiwan
| | - Chung-Ping Huang
- Institute
of Photonic System, College of Photonics, National Chiao Tung University, No. 301, Gaofa 3rd Road, Guiren
District, Tainan 71150, Taiwan
| | - Ting-Yu Lee
- Institute
of Photonic System, College of Photonics, National Chiao Tung University, No. 301, Gaofa 3rd Road, Guiren
District, Tainan 71150, Taiwan
| | - Yu-Yun Cho
- Institute
of Photonic System, College of Photonics, National Chiao Tung University, No. 301, Gaofa 3rd Road, Guiren
District, Tainan 71150, Taiwan
| | - Yin-Hsin Liu
- Department
of Applied Chemistry, National Chiao Tung
University, No. 1001, University Road, Hsinchu 30010, Taiwan
| | - Arumugam Manikandan
- Department
of Material Science and Engineering, National
Tsing Hua University, Delta Building 101, Section 2, Kuang-Fu Road, Hsinchu 30013, Taiwan, ROC
| | - Yu-Lun Chueh
- Department
of Material Science and Engineering, National
Tsing Hua University, Delta Building 101, Section 2, Kuang-Fu Road, Hsinchu 30013, Taiwan, ROC
| | - Teng-Ming Chen
- Department
of Applied Chemistry, National Chiao Tung
University, No. 1001, University Road, Hsinchu 30010, Taiwan
| | - Hao-Chung Kuo
- Department
of Photonics and Graduate Institute of Electro-Optical Engineering,
College of Electrical and Computer Engineering, National Chiao Tung University, No. 1001, University Road, Hsinchu 30010, Taiwan
| | - Chien-Chung Lin
- Institute
of Photonic System, College of Photonics, National Chiao Tung University, No. 301, Gaofa 3rd Road, Guiren
District, Tainan 71150, Taiwan
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14
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Cherevkov S, Azizov R, Sokolova A, Nautran V, Miruschenko M, Arefina I, Baranov M, Kurdyukov D, Stovpiaga E, Golubev V, Baranov A, Ushakova E. Interface Chemical Modification between All-Inorganic Perovskite Nanocrystals and Porous Silica Microspheres for Composite Materials with Improved Emission. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:E119. [PMID: 33430213 PMCID: PMC7825651 DOI: 10.3390/nano11010119] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 01/02/2021] [Accepted: 01/04/2021] [Indexed: 11/16/2022]
Abstract
In recent years, there has been rapid progress in the development of photonic devices based on lead halide perovskite nanocrystals since they possess a set of unique optical and charge transport properties. However, the main limiting factor for their subsequent application is poor stability against exposure to adverse environmental conditions. In this work, a study of a composite material based on perovskite CsPbBr3 nanocrystals embedded in porous silica microspheres is presented. We developed two different approaches to change the interface between nanocrystals and the surface of the microsphere pores: surface treatment of (i) nanocrystals or (ii) microspheres. The surface modification with tetraethylorthosilicate molecules not only increased stability but also improved the optical responses of the composite material. The position of the emission band remained almost unchanged, but its lifetime increased significantly compared to the initial value. The improvement of the optical performance via surface modification with tetraethylorthosilicate molecules also works for the lead-free Bi-doped Cs2AgInCl6 double perovskite nanocrystals leading to increased stability of their optical responses at ambient conditions. These results clearly demonstrate the advantage of a composite material that can be used in novel photonic devices with improved performance.
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Affiliation(s)
- Sergei Cherevkov
- Center of Information Optical Technologies, ITMO University, 197101 Saint Petersburg, Russia; (S.C.); (R.A.); (A.S.); (V.N.); (M.M.); (I.A.); (M.B.); (A.B.)
| | - Ruslan Azizov
- Center of Information Optical Technologies, ITMO University, 197101 Saint Petersburg, Russia; (S.C.); (R.A.); (A.S.); (V.N.); (M.M.); (I.A.); (M.B.); (A.B.)
| | - Anastasiia Sokolova
- Center of Information Optical Technologies, ITMO University, 197101 Saint Petersburg, Russia; (S.C.); (R.A.); (A.S.); (V.N.); (M.M.); (I.A.); (M.B.); (A.B.)
| | - Valeriia Nautran
- Center of Information Optical Technologies, ITMO University, 197101 Saint Petersburg, Russia; (S.C.); (R.A.); (A.S.); (V.N.); (M.M.); (I.A.); (M.B.); (A.B.)
| | - Mikhail Miruschenko
- Center of Information Optical Technologies, ITMO University, 197101 Saint Petersburg, Russia; (S.C.); (R.A.); (A.S.); (V.N.); (M.M.); (I.A.); (M.B.); (A.B.)
| | - Irina Arefina
- Center of Information Optical Technologies, ITMO University, 197101 Saint Petersburg, Russia; (S.C.); (R.A.); (A.S.); (V.N.); (M.M.); (I.A.); (M.B.); (A.B.)
| | - Mikhail Baranov
- Center of Information Optical Technologies, ITMO University, 197101 Saint Petersburg, Russia; (S.C.); (R.A.); (A.S.); (V.N.); (M.M.); (I.A.); (M.B.); (A.B.)
| | - Dmitry Kurdyukov
- Laboratory of Amorphous Semiconductor Physics, Ioffe Institute, 194021 Saint Petersburg, Russia; (D.K.); (E.S.); (V.G.)
| | - Ekaterina Stovpiaga
- Laboratory of Amorphous Semiconductor Physics, Ioffe Institute, 194021 Saint Petersburg, Russia; (D.K.); (E.S.); (V.G.)
| | - Valery Golubev
- Laboratory of Amorphous Semiconductor Physics, Ioffe Institute, 194021 Saint Petersburg, Russia; (D.K.); (E.S.); (V.G.)
| | - Alexander Baranov
- Center of Information Optical Technologies, ITMO University, 197101 Saint Petersburg, Russia; (S.C.); (R.A.); (A.S.); (V.N.); (M.M.); (I.A.); (M.B.); (A.B.)
| | - Elena Ushakova
- Center of Information Optical Technologies, ITMO University, 197101 Saint Petersburg, Russia; (S.C.); (R.A.); (A.S.); (V.N.); (M.M.); (I.A.); (M.B.); (A.B.)
- Department of Materials Science and Engineering and Center for Functional Photonics (CFP), City University of Hong Kong, Hong Kong, China
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15
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Babu KJ, Kaur G, Biswal L, De G, Ghosh HN. Ultrafast Charge Delocalization Dynamics of Ambient Stable CsPbBr
3
Nanocrystals Encapsulated in Polystyrene Fiber. Chemistry 2020; 27:683-691. [DOI: 10.1002/chem.202003254] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Indexed: 11/06/2022]
Affiliation(s)
- K. Justice Babu
- Institute of Nano Science and Technology Mohali Punjab 160062 India
| | - Gurpreet Kaur
- Institute of Nano Science and Technology Mohali Punjab 160062 India
| | - Liza Biswal
- Institute of Nano Science and Technology Mohali Punjab 160062 India
| | - Goutam De
- Institute of Nano Science and Technology Mohali Punjab 160062 India
| | - Hirendra N. Ghosh
- Institute of Nano Science and Technology Mohali Punjab 160062 India
- RPC Division Bhabha Atomic Research Centre Trombay Mumbai 400085 India
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16
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Liu M, Pasanen H, Ali‐Löytty H, Hiltunen A, Lahtonen K, Qudsia S, Smått J, Valden M, Tkachenko NV, Vivo P. B-Site Co-Alloying with Germanium Improves the Efficiency and Stability of All-Inorganic Tin-Based Perovskite Nanocrystal Solar Cells. Angew Chem Int Ed Engl 2020; 59:22117-22125. [PMID: 32816348 PMCID: PMC7756719 DOI: 10.1002/anie.202008724] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Indexed: 11/21/2022]
Abstract
Colloidal lead-free perovskite nanocrystals have recently received extensive attention because of their facile synthesis, the outstanding size-tunable optoelectronic properties, and less or no toxicity in their commercial applications. Tin (Sn) has so far led to the most efficient lead-free solar cells, yet showing highly unstable characteristics in ambient conditions. Here, we propose the synthesis of all-inorganic mixture Sn-Ge perovskite nanocrystals, demonstrating the role of Ge2+ in stabilizing Sn2+ cation while enhancing the optical and photophysical properties. The partial replacement of Sn atoms by Ge atoms in the nanostructures effectively fills the high density of Sn vacancies, reducing the surface traps and leading to a longer excitonic lifetime and increased photoluminescence quantum yield. The resultant Sn-Ge nanocrystals-based devices show the highest efficiency of 4.9 %, enhanced by nearly 60 % compared to that of pure Sn nanocrystals-based devices.
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Affiliation(s)
- Maning Liu
- Chemistry and Advanced Materials GroupFaculty of Engineering and Natural SciencesTampere UniversityP.O. Box 69233014TampereFinland
| | - Hannu Pasanen
- Chemistry and Advanced Materials GroupFaculty of Engineering and Natural SciencesTampere UniversityP.O. Box 69233014TampereFinland
| | - Harri Ali‐Löytty
- Surface Science GroupFaculty of Engineering and Natural SciencesTampere UniversityP.O. Box 69233014TampereFinland
| | - Arto Hiltunen
- Chemistry and Advanced Materials GroupFaculty of Engineering and Natural SciencesTampere UniversityP.O. Box 69233014TampereFinland
| | - Kimmo Lahtonen
- Faculty of Engineering and Natural SciencesTampere UniversityP.O. Box 69233014TampereFinland
| | - Syeda Qudsia
- Laboratory of Molecular Science and EngineeringÅbo Akademi UniversityPorthansgatan 3–520500TurkuFinland
| | - Jan‐Henrik Smått
- Laboratory of Molecular Science and EngineeringÅbo Akademi UniversityPorthansgatan 3–520500TurkuFinland
| | - Mika Valden
- Surface Science GroupFaculty of Engineering and Natural SciencesTampere UniversityP.O. Box 69233014TampereFinland
| | - Nikolai V. Tkachenko
- Chemistry and Advanced Materials GroupFaculty of Engineering and Natural SciencesTampere UniversityP.O. Box 69233014TampereFinland
| | - Paola Vivo
- Chemistry and Advanced Materials GroupFaculty of Engineering and Natural SciencesTampere UniversityP.O. Box 69233014TampereFinland
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17
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Liu M, Pasanen H, Ali‐Löytty H, Hiltunen A, Lahtonen K, Qudsia S, Smått J, Valden M, Tkachenko NV, Vivo P. B‐Site Co‐Alloying with Germanium Improves the Efficiency and Stability of All‐Inorganic Tin‐Based Perovskite Nanocrystal Solar Cells. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202008724] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Maning Liu
- Chemistry and Advanced Materials Group Faculty of Engineering and Natural Sciences Tampere University P.O. Box 692 33014 Tampere Finland
| | - Hannu Pasanen
- Chemistry and Advanced Materials Group Faculty of Engineering and Natural Sciences Tampere University P.O. Box 692 33014 Tampere Finland
| | - Harri Ali‐Löytty
- Surface Science Group Faculty of Engineering and Natural Sciences Tampere University P.O. Box 692 33014 Tampere Finland
| | - Arto Hiltunen
- Chemistry and Advanced Materials Group Faculty of Engineering and Natural Sciences Tampere University P.O. Box 692 33014 Tampere Finland
| | - Kimmo Lahtonen
- Faculty of Engineering and Natural Sciences Tampere University P.O. Box 692 33014 Tampere Finland
| | - Syeda Qudsia
- Laboratory of Molecular Science and Engineering Åbo Akademi University Porthansgatan 3–5 20500 Turku Finland
| | - Jan‐Henrik Smått
- Laboratory of Molecular Science and Engineering Åbo Akademi University Porthansgatan 3–5 20500 Turku Finland
| | - Mika Valden
- Surface Science Group Faculty of Engineering and Natural Sciences Tampere University P.O. Box 692 33014 Tampere Finland
| | - Nikolai V. Tkachenko
- Chemistry and Advanced Materials Group Faculty of Engineering and Natural Sciences Tampere University P.O. Box 692 33014 Tampere Finland
| | - Paola Vivo
- Chemistry and Advanced Materials Group Faculty of Engineering and Natural Sciences Tampere University P.O. Box 692 33014 Tampere Finland
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18
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Lu Z, Li Y, Qiu W, Rogach AL, Nagl S. Composite Films of CsPbBr 3 Perovskite Nanocrystals in a Hydrophobic Fluoropolymer for Temperature Imaging in Digital Microfluidics. ACS APPLIED MATERIALS & INTERFACES 2020; 12:19805-19812. [PMID: 32237718 DOI: 10.1021/acsami.0c02128] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
A composite film material that combines CsPbBr3 perovskite nanocrystals with a Hyflon AD 60 fluoropolymer was developed and utilized for high-resolution optical temperature imaging. It exhibited bright luminescence and, most importantly, long-term stability in an aqueous medium. CsPbBr3 nanocrystal-Hyflon films immersed in aqueous solutions showed stable luminescence over at least 4 months and exhibited a fully reversible pronounced temperature sensitivity of 1.2% K-1 between 20 and 80 °C. They were incorporated into a digital microfluidic (electrowetting on dielectric) platform and were used for spatially resolved temperature measurements during droplet movements. Thermal mapping with a CsPbBr3 nanocrystal-Hyflon sensing layer in a room temperature environment (22.0 °C) revealed an increase in local temperatures of up to 40.2 °C upon voltage-driven droplet manipulations in a digital microfluidic system, corresponding to a local temperature change of up to 18.2 °C.
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Affiliation(s)
- Zhangdi Lu
- Department of Chemistry, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Yanxiu Li
- Department of Materials Science and Engineering, Center for Functional Photonics (CFP), City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong SAR, China
| | - Wenting Qiu
- Department of Chemistry, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Andrey L Rogach
- Department of Materials Science and Engineering, Center for Functional Photonics (CFP), City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong SAR, China
| | - Stefan Nagl
- Department of Chemistry, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
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19
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Ushakova EV, Cherevkov SA, Kuznetsova VA, Baranov AV. Lead-Free Perovskites for Lighting and Lasing Applications: A Minireview. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E3845. [PMID: 31766585 PMCID: PMC6926615 DOI: 10.3390/ma12233845] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 11/18/2019] [Accepted: 11/20/2019] [Indexed: 11/16/2022]
Abstract
Research on materials with perovskite crystal symmetry for photonics applications represent a rapidly growing area of the photonics development due to their unique optical and electrical properties. Among them are high charge carrier mobility, high photoluminescence quantum yield, and high extinction coefficients, which can be tuned through all visible range by a controllable change in chemical composition. To date, most of such materials contain lead atoms, which is one of the obstacles for their large-scale implementation. This disadvantage can be overcome via the substitution of lead with less toxic chemical elements, such as Sn, Bi, Yb, etc., and their mixtures. Herein, we summarized the scientific works from 2016 related to the lead-free perovskite materials with stress on the lasing and lighting applications. The synthetic approaches, chemical composition, and morphology of materials, together with the optimal device configurations depending on the material parameters are summarized with a focus on future challenges.
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Affiliation(s)
- Elena V. Ushakova
- Center of Information Optical Technologies, ITMO University, 49 Kronverksky pr., Saint Petersburg 197101, Russia; (S.A.C.); (V.A.K.); (A.V.B.)
- Department of Materials Science and Engineering, and Center for Functional Photonics (CFP), City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Sergei A. Cherevkov
- Center of Information Optical Technologies, ITMO University, 49 Kronverksky pr., Saint Petersburg 197101, Russia; (S.A.C.); (V.A.K.); (A.V.B.)
| | - Vera A. Kuznetsova
- Center of Information Optical Technologies, ITMO University, 49 Kronverksky pr., Saint Petersburg 197101, Russia; (S.A.C.); (V.A.K.); (A.V.B.)
| | - Alexander V. Baranov
- Center of Information Optical Technologies, ITMO University, 49 Kronverksky pr., Saint Petersburg 197101, Russia; (S.A.C.); (V.A.K.); (A.V.B.)
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20
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Hu Y, Zhang X, Yang C, Li J, Wang L. Fe2+ doped in CsPbCl3 perovskite nanocrystals: impact on the luminescence and magnetic properties. RSC Adv 2019; 9:33017-33022. [PMID: 35529137 PMCID: PMC9073237 DOI: 10.1039/c9ra07069a] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 10/01/2019] [Indexed: 11/23/2022] Open
Abstract
All inorganic halide perovskite nanocrystals (NCs) have wider practical applications owing to their good properties, whereas the photoluminescence quantum yield (PLQY) of the purple emissive CsPbCl3 NCs is too low to apply in multi-color displays. In this study, earth-abundant Fe2+ metal ions were successfully incorporated into the lattice of CsPbCl3 NCs with the partial replacement of the sites of Pb2+ ions. The impacts of Fe2+ ions on the luminescence and magnetic properties of CsPbCl3 NCs were studied using photoluminescence spectroscopy (PL), X-ray diffraction spectroscopy (XRD), transmission electron microscopy (TEM), field emission scanning electron microscopy (FE-SEM), and a vibrating sample magnetometer (VSM). CsPb1−xFexCl3 NCs, with x = 0, 0.1, 0.2, and 0.3, were synthesized at 170 °C. It was found that an appropriate amount of Fe2+ doping not only improved the homogeneity of the size of NCs, but also enhanced the PLQY and average PL lifetimes. An obvious hysteresis behavior was observed for the NCs, and there was a significant change in the saturation magnetization value with the increase in the Fe2+ concentration. The CsPb1−xFexCl3 NCs were synthesized and an appropriate amount of Fe2+ doping can enhance PLQY and average PL lifetimes. Meanwhile, an obvious hysteresis behavior has been observed for the NCs.![]()
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Affiliation(s)
- Yue Hu
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education
- Jilin Normal University
- Siping 136000
- China
| | - Xinyue Zhang
- National Demonstration Center for Experimental Physics Education
- Jilin Normal University
- Siping 136000
- China
| | - Chaoqun Yang
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education
- Jilin Normal University
- Siping 136000
- China
| | - Ji Li
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education
- Jilin Normal University
- Siping 136000
- China
- National Demonstration Center for Experimental Physics Education
| | - Li Wang
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education
- Jilin Normal University
- Siping 136000
- China
- National Demonstration Center for Experimental Physics Education
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