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Ning F, Wang X, Wang Y. Unraveling the Ultrasonic-Assisted Synthesis of Green-Emitting CsPbBr 3@Cs 4PbBr 6: Reaction Process, Luminescence Property, and Display Application. Inorg Chem 2024. [PMID: 39320114 DOI: 10.1021/acs.inorgchem.4c02474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/26/2024]
Abstract
The pursuit of stable and highly emissive perovskite materials has garnered increasing attention in optoelectronic applications. Green-emitting CsPbBr3@Cs4PbBr6, as a green-emissive material in the solid-state form, has great potential as a color conversion material for full-color displays. However, it is a challenge to achieve mass preparation under ambient conditions. Meanwhile, the formation mechanism is ambiguous. This study reports a ligand-free and rapid mass synthesis of nanomicrosized CsPbBr3@Cs4PbBr6 solid via an ultrasonic-assisted method. The synthesized CsPbBr3@Cs4PbBr6 solids exhibit uniform morphology, high stability, and solid-state quantum efficiency of approximately 55%. Moreover, the transformation mechanism from Pb-Br complexes in the synthesis process is fully investigated by monitoring the phase and spectral evolution. By employing it as a green emitter, the obtained white light-emitting diode (LED) device shows high performance with a correlation color temperature of 7635 K and a wide color gamut of 123% NTSC. This study offers a low-cost and simple operation mass production method for solid-state perovskite powders with excellent chemical stability. Additionally, it provides new insights into the formation mechanism of highly efficient perovskite materials and promotes their practical applications.
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Affiliation(s)
- Fuchun Ning
- School of Materials and Energy, Lanzhou University, Lanzhou 730000, China
- National and Local Joint Engineering Laboratory for Optical Conversion Materials and Technology, Lanzhou University, Lanzhou 730000, China
| | - Xicheng Wang
- School of Materials and Energy, Lanzhou University, Lanzhou 730000, China
- National and Local Joint Engineering Laboratory for Optical Conversion Materials and Technology, Lanzhou University, Lanzhou 730000, China
| | - Yuhua Wang
- School of Materials and Energy, Lanzhou University, Lanzhou 730000, China
- National and Local Joint Engineering Laboratory for Optical Conversion Materials and Technology, Lanzhou University, Lanzhou 730000, China
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2
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Han X, Wan S, He L, Zou J, Mavric A, Wang Y, Piotrowski M, Bandela AK, Samorì P, Wang Z, Leydecker T, Thumu U. Tunable Emissive CsPbBr 3/Cs 4PbBr 6 Quantum Dots Engineered by Discrete Phase Transformation for Enhanced Photogating in Field-Effect Phototransistors. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2401973. [PMID: 39189467 PMCID: PMC11348058 DOI: 10.1002/advs.202401973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2024] [Revised: 04/11/2024] [Indexed: 08/28/2024]
Abstract
Precise control of quantum structures in hybrid nanocrystals requires advancements in scientific methodologies. Here, on the design of tunable CsPbBr3/Cs4PbBr6 quantum dots are reported by developing a unique discrete phase transformation approach in Cs4PbBr6 nanocrystals. Unlike conventional hybrid systems that emit solely in the green region, this current strategy produces adjustable luminescence in the blue (450 nm), cyan (480 nm), and green (510 nm) regions with high photoluminescence quantum yields up to 45%, 60%, and 85%, respectively. Concentration-dependent studies reveal that phase transformation mechanisms and the factors that drive CsBr removal occur at lower dilutions while the dissolution-recrystallization process dominates at higher dilutions. When the polymer-CsPbBr3/Cs4PbBr6 integrated into a field-effected transistor the resulting phototransistors featured enhanced photosensitivity exceeding 105, being the highest reported for an n-type phototransistor, while maintaining good transistor performances as compared to devices consisting of polymer-CsPbBr3 NCs.
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Affiliation(s)
- Xiao Han
- Institute of Fundamental and Frontier SciencesUniversity of Electronic Science and Technology of ChinaChengdu610054China
| | - Siyuan Wan
- Institute of Fundamental and Frontier SciencesUniversity of Electronic Science and Technology of ChinaChengdu610054China
| | - Lin He
- Institute of Fundamental and Frontier SciencesUniversity of Electronic Science and Technology of ChinaChengdu610054China
| | - Junlong Zou
- Institute of Fundamental and Frontier SciencesUniversity of Electronic Science and Technology of ChinaChengdu610054China
| | - Andraz Mavric
- Materials Research LaboratoryUniversity of Nova GoricaVipavska 13Nova GoricaSI‐5000Slovenia
| | - Yixi Wang
- School of New Energy Materials and ChemistryLeshan Normal UniversityLeshanSichuan614000China
| | - Marek Piotrowski
- Institute of Fundamental and Frontier SciencesUniversity of Electronic Science and Technology of ChinaChengdu610054China
| | - Anil Kumar Bandela
- Department of ChemistryBen Gurion University of the NegevBeer Sheva84105Israel
| | - Paolo Samorì
- University of StrasbourgCNRSISIS UMR 7006, 8 Allée Gaspard MongeStrasbourg67000France
| | - Zhiming Wang
- Institute of Fundamental and Frontier SciencesUniversity of Electronic Science and Technology of ChinaChengdu610054China
| | - Tim Leydecker
- Institute of Fundamental and Frontier SciencesUniversity of Electronic Science and Technology of ChinaChengdu610054China
| | - Udayabhaskararao Thumu
- Institute of Fundamental and Frontier SciencesUniversity of Electronic Science and Technology of ChinaChengdu610054China
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3
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Naresh V, Jang T, Pang Y, Lee N. Highly luminescent dual-phase CsPbBr 3/Cs 4PbBr 6 microcrystals for a wide color gamut for backlight displays. NANOSCALE 2022; 14:17789-17801. [PMID: 36440545 DOI: 10.1039/d2nr05653d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Cesium lead bromide perovskite nanocrystals (NCs) embedded in Cs4PbBr6 or CsPb2Br5 matrices forming core/shell structures are promising luminescent materials that exhibit remarkable photoluminescence properties meeting the need in a wide range of applications while overcoming stability challenges. Here, we report the large-scale, ligand-free synthesis of dual-phase Cs4PbBr6/CsPbBr3 microcrystals (MCs) using ultrasonication at room temperature, exhibiting a high photoluminescence quantum yield (PLQY) of 82.7% and good stability. High-resolution transmission electron microscopy and X-ray photoelectron characterization confirm that CsPbBr3 NCs are embedded in the Cs4PbBr6 matrix-forming CsPbBr3/Cs4PbBr6 dual-phase structure. The evolution of the luminescence properties with temperature suggests that the strong green emission results from direct exciton recombination in the isolated [PbBr6]4- octahedra, which possess a large exciton binding energy of 283.6 meV. As revealed from their emission intensities, the dual-phase CsPbBr3/Cs4PbBr6 MCs demonstrate excellent stability against ultraviolet irradiation (76%), good moisture resistance (42.7%), and good thermal tolerance (51%). It is understood that such excellent PLQY and stability are due to the surface passivation of the CsPbBr3 NCs attributed to the large bandgap as well as the isolated [PbBr6]4- octahedra separated by Cs+ ions in the Cs4PbBr6 crystal lattice. Finally, the suitability of the green-emitting CsPbBr3/Cs4PbBr6 material for achieving white-light emission and a wide color gamut is evaluated by constructing a prototype white light-emitting diode (w-LED) using CsPbBr3/Cs4PbBr6 and red-emitting K2SiF6:Mn4+ materials taken in different weight ratios and combined with a blue light-emitting InGaN LED chip (λ = 455 nm). The constructed w-LED device exhibits the color coordinates (0.3315, 0.3289), an efficacy of 68 lm W-1, a color rendering index of 87%, a color temperature of 5564 K, and a wide color gamut of ∼118.78% (NTSC) and ∼88.69% (Rec. 2020) with RGB color filters in the CIE 1931 color space. Therefore, based on our present findings, we strongly believe that the dual-phase CsPbBr3/Cs4PbBr6 material is a promising green-emitting phosphor for use in w-LEDs as the backlight of display systems.
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Affiliation(s)
- V Naresh
- School of Advanced Materials Engineering, Kookmin University, Seoul 02707, Republic of Korea.
| | - Taehyung Jang
- Department of Chemistry, Gwangju Institute of Science and Technology, 123 Cheomdangwagi-ro, Gwangju 61005, Republic of Korea
| | - Yoonsoo Pang
- Department of Chemistry, Gwangju Institute of Science and Technology, 123 Cheomdangwagi-ro, Gwangju 61005, Republic of Korea
| | - Nohyun Lee
- School of Advanced Materials Engineering, Kookmin University, Seoul 02707, Republic of Korea.
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Baek KY, Lee W, Lee J, Kim J, Ahn H, Kim JI, Kim J, Lim H, Shin J, Ko YJ, Lee HD, Friend RH, Lee TW, Lee J, Kang K, Lee T. Mechanochemistry-driven engineering of 0D/3D heterostructure for designing highly luminescent Cs–Pb–Br perovskites. Nat Commun 2022; 13:4263. [PMID: 35871221 PMCID: PMC9308791 DOI: 10.1038/s41467-022-31924-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Accepted: 07/06/2022] [Indexed: 11/16/2022] Open
Abstract
Embedding metal-halide perovskite particles within an insulating host matrix has proven to be an effective strategy for revealing the outstanding luminescence properties of perovskites as an emerging class of light emitters. Particularly, unexpected bright green emission observed in a nominally pure zero-dimensional cesium–lead–bromide perovskite (Cs4PbBr6) has triggered intensive research in better understanding the serendipitous incorporation of emissive guest species within the Cs4PbBr6 host. However, a limited controllability over such heterostructural configurations in conventional solution-based synthesis methods has limited the degree of freedom in designing synthesis routes for accessing different structural and compositional configurations of these host–guest species. In this study, we provide means of enhancing the luminescence properties in the nominal Cs4PbBr6 powder through a guided heterostructural configuration engineering enabled by solid-state mechanochemical synthesis. Realized by an in-depth study on time-dependent evaluation of optical and structural properties during the synthesis of Cs4PbBr6, our target-designed synthesis protocol to promote the endotaxial formation of Cs4PbBr6/CsPbBr3 heterostructures provides key insights for understanding and designing kinetics-guided syntheses of highly luminescent perovskite emitters for light-emitting applications. While emission and stability of metal–halide perovskites can be enhanced through heterostructural encapsulation, a controlled synthesis route to such structures is not trivial to realize. Here, the authors design a mechanochemistry-driven protocol for synthesizing highly luminescent CsPbBr3/Cs4PbBr6 heterostructures.
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5
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Electric field assisted assembly of nanoparticle loaded microspheres toward industrial applications for organic dye removal. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Mishra A, Bose R, Zheng Y, Xu W, McMullen R, Mehta AB, Kim MJ, Hsu JWP, Malko AV, Slinker JD. Stable and Bright Electroluminescent Devices utilizing Emissive 0D Perovskite Nanocrystals Incorporated in a 3D CsPbBr 3 Matrix. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2203226. [PMID: 35679199 DOI: 10.1002/adma.202203226] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Revised: 06/06/2022] [Indexed: 06/15/2023]
Abstract
The 0D cesium lead halide perovskite Cs4 PbBr6 has drawn remarkable interest due to its highly efficient robust green emission compared to its 3D CsPbBr3 counterpart. However, seizing the advantages of the superior photoluminescence properties for practical light-emitting devices remains elusive. To date, Cs4 PbBr6 has been employed only as a higher-bandgap nonluminescent matrix to passivate or provide quantum/dielectric confinement to CsPbBr3 in light-emitting devices and to enhance its photo-/thermal/environmental stability. To resolve this disparity, a novel solvent engineering method to incorporate highly luminescent 0D Cs4 PbBr6 nanocrystals (perovskite nanocrystals (PNCs)) into a 3D CsPbBr3 film, forming the active emissive layer in single-layer perovskite light-emitting electrochemical cells (PeLECs) is designed. A dramatic increase of the maximum external quantum efficiency and luminance from 2.7% and 6050 cd m-2 for a 3D-only PeLEC to 8.3% and 11 200 cd m-2 for a 3D-0D PNC device with only 7% by weight of 0D PNCs is observed. The majority of this increase is driven by the efficient inherent emission of the 0D PNCs, while the concomitant morphology improvement also contributes to reduced leakage current, reduced hysteresis, and enhanced operational lifetime (half-life of 129 h), making this one of the best-performing LECs reported to date.
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Affiliation(s)
- Aditya Mishra
- Department of Materials Science and Engineering, The University of Texas at Dallas, 800 West Campbell Rd., Richardson, TX, 75080-3021, USA
| | - Riya Bose
- Department of Physics, The University of Texas at Dallas, 800 West Campbell Rd., Richardson, TX, 75080-3021, USA
| | - Yangzi Zheng
- Department of Physics, The University of Texas at Dallas, 800 West Campbell Rd., Richardson, TX, 75080-3021, USA
| | - Weijie Xu
- Department of Materials Science and Engineering, The University of Texas at Dallas, 800 West Campbell Rd., Richardson, TX, 75080-3021, USA
| | - Reema McMullen
- Department of Physics, The University of Texas at Dallas, 800 West Campbell Rd., Richardson, TX, 75080-3021, USA
| | - Abhas B Mehta
- Department of Materials Science and Engineering, The University of Texas at Dallas, 800 West Campbell Rd., Richardson, TX, 75080-3021, USA
| | - Moon J Kim
- Department of Materials Science and Engineering, The University of Texas at Dallas, 800 West Campbell Rd., Richardson, TX, 75080-3021, USA
| | - Julia W P Hsu
- Department of Materials Science and Engineering, The University of Texas at Dallas, 800 West Campbell Rd., Richardson, TX, 75080-3021, USA
| | - Anton V Malko
- Department of Physics, The University of Texas at Dallas, 800 West Campbell Rd., Richardson, TX, 75080-3021, USA
| | - Jason D Slinker
- Department of Materials Science and Engineering, The University of Texas at Dallas, 800 West Campbell Rd., Richardson, TX, 75080-3021, USA
- Department of Physics, The University of Texas at Dallas, 800 West Campbell Rd., Richardson, TX, 75080-3021, USA
- Department of Chemistry, The University of Texas at Dallas, 800 West Campbell Rd., Richardson, TX, 75080-3021, USA
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7
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Li Y, Chen L, Ouyang X, Zhao K, Xu Q. Cryogenic Scintillation Performance of Cs 4PbI 6 Perovskite Single Crystals. Inorg Chem 2022; 61:7553-7559. [PMID: 35503991 DOI: 10.1021/acs.inorgchem.2c00707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
All-inorganic Cs4PbI6 single crystals (SCs) is emerging scintillators for radiation detection. In this study, we report on the X-ray scintillation properties of Cs4PbI6 SCs at the temperature range of 50-290 K. The temperature-dependent radioluminescence (RL) spectrum and decay time were investigated. It was found that the RL spectra show very pronounced temperature-dependent changes in the overall shape. The RL intensity increases with a decrease in the temperature under X-ray excitation. The emission bands at 318, 360, and 554 nm are attributed to the near-band-edge emission in Cs4PbI6 SCs, the 3P1 → 1S0 transition of the Pb2+ ion, and the emission of δ-CsPbI3 aggregates dispersed in the Cs4PbI6 SC matrix, respectively. With decreasing temperature, the fast and slow decay times tend to slow down and are estimated to be 46.0 ns (33.22%) and 820 ns (66.78%) at 50 K, which are far superior to that of the common cryogenic scintillator. These cryogenic scintillation characteristics of Cs4PbI6 SCs demonstrate its potential for cryogenic detection.
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Affiliation(s)
- Yang Li
- The Department of Nuclear Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China
| | - Liang Chen
- States Key Laboratory of Intense Pulsed Radiation Simulation and Effect and Radiation Detection Research Center, Northwest Institute of Nuclear Technology, Xi'an 710024, China
| | - Xiaoping Ouyang
- States Key Laboratory of Intense Pulsed Radiation Simulation and Effect and Radiation Detection Research Center, Northwest Institute of Nuclear Technology, Xi'an 710024, China
| | - Kuo Zhao
- Xi'an Research Institute of Hi-Tech, Xi'an 710025, China
| | - Qiang Xu
- The Department of Nuclear Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China
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Bao Z, Hsiu CY, Fang MH, Majewska N, Sun W, Huang SJ, Yuan ECY, Chang YC, Chan JCC, Mahlik S, Zhou W, Yang CW, Lu KM, Liu RS. Formation and Near-Infrared Emission of CsPbI 3 Nanoparticles Embedded in Cs 4PbI 6 Crystals. ACS APPLIED MATERIALS & INTERFACES 2021; 13:34742-34751. [PMID: 34264640 DOI: 10.1021/acsami.1c08920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Cs4PbI6, as a rarely investigated member of the Cs4PbX6 (X is a halogen element) family, has been successfully synthesized at low temperatures, and the synthetic conditions have been optimized. Metal iodides such as LiI, KI, NiI2, CoI2, and ZnI2, as additives, play an important role in enhancing the formation of the Cs4PbI6 microcrystals. ZnI2 with the lowest dissociation energy is the most efficient additive to supply iodide ions, and its amount of addition has also been optimized. Strong red to near-infrared (NIR) emission properties have been detected, and its optical emission centers have been identified to be numerous embedded perovskite-type α-CsPbI3 nanocrystallites (∼5 nm in diameter) based on investigations of temperature- and pressure-dependent photoluminescent properties. High-resolution transmission electron microscopy was used to detect these hidden nanoparticles, although the material was highly beam-sensitive and confirmed a "raisin bread"-like structure of the Cs4PbI6 crystals. A NIR mini-LED for the biological application has been successfully fabricated using as-synthesized Cs4PbI6 crystals. This work provides information for the future development of infrared fluorescent nanoscale perovskite materials.
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Affiliation(s)
- Zhen Bao
- Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
| | - Chiao-Yin Hsiu
- Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
| | - Mu-Huai Fang
- Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
| | - Natalia Majewska
- Institute of Experimental Physics, Faculty of Mathematics, Physics and Informatics, University of Gdańsk, Gdańsk 80-308, Poland
| | - Weihao Sun
- School of Chemistry, University of St Andrews, St Andrews KY16 9ST, United Kingdom
| | - Shing-Jong Huang
- Instrumentation Center, National Taiwan University, Taipei 106, Taiwan
| | | | - Yu-Chun Chang
- Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
| | | | - Sebastian Mahlik
- Institute of Experimental Physics, Faculty of Mathematics, Physics and Informatics, University of Gdańsk, Gdańsk 80-308, Poland
| | - Wuzong Zhou
- School of Chemistry, University of St Andrews, St Andrews KY16 9ST, United Kingdom
| | - Chia-Wei Yang
- Everlight Electronics Co., Ltd., New Taipei City 238, Taiwan
| | - Kuang-Mao Lu
- Everlight Electronics Co., Ltd., New Taipei City 238, Taiwan
| | - Ru-Shi Liu
- Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
- Advanced Research Center of Green Materials Science and Technology, National Taiwan University, Taipei 106, Taiwan
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Abstract
This review provides in-depth insight into the structure–luminescence–application relationship of 0D all-inorganic/organic–inorganic hybrid metal halide luminescent materials.
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Affiliation(s)
- Mingze Li
- The State Key Laboratory of Luminescent Materials and Devices
- Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou
| | - Zhiguo Xia
- The State Key Laboratory of Luminescent Materials and Devices
- Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou
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10
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Bao Z, Chiu HD, Wang W, Su Q, Yamada T, Chang YC, Chen S, Kanemitsu Y, Chung RJ, Liu RS. Highly Luminescent CsPbBr 3@Cs 4PbBr 6 Nanocrystals and Their Application in Electroluminescent Emitters. J Phys Chem Lett 2020; 11:10196-10202. [PMID: 33205976 DOI: 10.1021/acs.jpclett.0c03142] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Zero-dimensional perovskite nanocrystals (NCs) are becoming the most attractive material due to their excellent optical performance and better stability compared with high-dimensional perovskite. However, their application in electroluminescent (EL) emitters for high-quality displays is still limited. In this work, we successfully achieved CsPbBr3@Cs4PbBr6 NCs around 13.9 ± 0.2 nm by using the hot-injection method. Additional SnBr2 was mixed in the PbBr2 precursor to provide extra Br- ions and reduce the excessive amount of Pb2+ ions to promote the formation of CsPbBr3@Cs4PbBr6. Time resolution photoluminescence analysis indicated that the green emission of our CsPbBr3@Cs4PbBr6 NCs originated from the embedded CsPbBr3 NCs, which corresponds to our previous research. The Cs4PbBr6 crystals passivated the surface of CsPbBr3 NCs, resulting in the absence of trions for the high photoluminescence quantum yield. The as-synthesized CsPbBr3@Cs4PbBr6 NCs were used to fabricate quantum dot light-emitting diode (QLED) devices with the highest current efficiency of 4.89 cd/A. This is the best performance of the CsPbBr3@Cs4PbBr6-system QLED device, which reveals the great potential of CsPbBr3@Cs4PbBr6 NCs and will inspire further study of zero-dimensional perovskite composite NCs for EL emitters.
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Affiliation(s)
- Zhen Bao
- Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
| | - Hsin-Di Chiu
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 106, Taiwan
| | - Weigao Wang
- Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Qiang Su
- Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Takumi Yamada
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Yu-Chun Chang
- Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
| | - Shuming Chen
- Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yoshihiko Kanemitsu
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Ren-Jei Chung
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 106, Taiwan
| | - Ru-Shi Liu
- Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
- Advanced Research Center of Green Materials Science and Technology, National Taiwan University, Taipei 106, Taiwan
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