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Wen X, Wang J, Zhang Z, Han X, Zeng H, Zou G, Xu D, Lin Z. A Three-Dimensional Open-Framework Tin(II) Sulfate with Near-Unity Photoluminescence Quantum Yield. Inorg Chem 2024; 63:8521-8525. [PMID: 38691447 DOI: 10.1021/acs.inorgchem.4c00943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2024]
Abstract
A new open-framework tin(II) sulfate, formulated as C4H12N2·Sn(SO4)2·H2O, was prepared under the structure-directing effect of piperazine. This compound features a 3D structure with 16-ring channels. Under ultraviolet light irradiation, it emits bright yellow luminescence with a near-unity photoluminescence quantum yield. Theoretical calculations were carried out to understand the luminescence mechanism.
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Affiliation(s)
- Xuemei Wen
- College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Jing Wang
- College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Zhizhuan Zhang
- College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xiangyu Han
- College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Hongmei Zeng
- College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Guohong Zou
- College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Dingguo Xu
- College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Zhien Lin
- College of Chemistry, Sichuan University, Chengdu 610064, China
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2
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Feng X, Ma Q, Liu J, Li R, Yang Y, Zhang W, Liu J. Acetic acid-driven synthesis of environmentally stable MAPb 0.5Sn 0.5Br 3 nano-assembly for anti-counterfeiting. J Colloid Interface Sci 2024; 660:449-457. [PMID: 38244510 DOI: 10.1016/j.jcis.2024.01.113] [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: 10/11/2023] [Revised: 12/29/2023] [Accepted: 01/16/2024] [Indexed: 01/22/2024]
Abstract
In mixed Sn-Pb perovskites, the synergistic properties of tin (Sn) and lead (Pb) are leveraged, effectively combining the merits of Pb-based perovskites while simultaneously reducing Pb-associated toxicity. However, the propensity for Sn to undergo facile oxidation from Sn2+ to Sn4+ poses a significant challenge to the stability of these mixed perovskites, limiting their advancement. This study proposes an innovative acetic acid (HAc)-driven synthesis approach to obtain a stable chain-like MAPb0.5Sn0.5Br3 nano-assembly. Leveraging the acidic properties of HAc serves a dual purpose. Primarily, it curtails the oxidation of Sn2+ to Sn4+. Secondly, it orchestrates nanocrystals (NCs) into a more uniform and ordered chain-like assembly, a consequence of hydrogen bonding and coordination interactions facilitated by the HAc. Additionally, HAc demonstrates its capability to passivate MAPb0.5Sn0.5Br3 surface through coordination bonding with unsaturated sites (i.e., Sn2+ or Pb2+), thus effectively compensating for bromide vacancies. Introducing HAc during the synthesis process yields perovskite NCs with enhanced thermal resilience, optical and water stability. Drawing upon the different stimulus responses of synthesized perovskite NCs when exposed to external environment, the optical anti-counterfeiting labels are prepared. The findings provide a potent strategy for augmenting the stability of perovskite NCs, suggesting their potential applicability in anti-counterfeiting endeavors.
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Affiliation(s)
- Xiaoxia Feng
- Key Laboratory of Eco-Functional Polymer Materials of the Ministry of Education Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province College of Chemistry and Chemical Engineering Northwest Normal University Lanzhou 730070, PR China.
| | - Qian Ma
- Key Laboratory of Eco-Functional Polymer Materials of the Ministry of Education Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province College of Chemistry and Chemical Engineering Northwest Normal University Lanzhou 730070, PR China
| | - Jinli Liu
- Key Laboratory of Eco-Functional Polymer Materials of the Ministry of Education Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province College of Chemistry and Chemical Engineering Northwest Normal University Lanzhou 730070, PR China
| | - Ruicong Li
- Key Laboratory of Eco-Functional Polymer Materials of the Ministry of Education Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province College of Chemistry and Chemical Engineering Northwest Normal University Lanzhou 730070, PR China
| | - Yixin Yang
- Key Laboratory of Eco-Functional Polymer Materials of the Ministry of Education Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province College of Chemistry and Chemical Engineering Northwest Normal University Lanzhou 730070, PR China
| | - Wenyuan Zhang
- Key Laboratory of Eco-Functional Polymer Materials of the Ministry of Education Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province College of Chemistry and Chemical Engineering Northwest Normal University Lanzhou 730070, PR China
| | - Jiacheng Liu
- Key Laboratory of Eco-Functional Polymer Materials of the Ministry of Education Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province College of Chemistry and Chemical Engineering Northwest Normal University Lanzhou 730070, PR China
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3
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Wang Z, Wei Y, Chen Y, Zhang H, Wang D, Ke J, Liu Y, Hong M. "Whole-Body" Fluorination for Highly Efficient and Ultra-Stable All-Inorganic Halide Perovskite Quantum Dots. Angew Chem Int Ed Engl 2024; 63:e202315841. [PMID: 38179848 DOI: 10.1002/anie.202315841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 12/20/2023] [Accepted: 01/02/2024] [Indexed: 01/06/2024]
Abstract
Inherent "soft" ionic lattice nature of halide perovskite quantum dots (QDs), triggered by the weak Pb-X (X=Cl, Br, I) bond, is recognized as the primary culprit for their serious instability. A promising way is to construct exceedingly strong ionic interaction inside the QDs and increase their crystal cohesive energy by substituting the interior X- with highly electronegative F- , however, which is challenging and hitherto remains unreported. Here, a "whole-body" fluorination strategy is proposed for strengthening the interior bonding architecture of QDs, wherein the F- are uniformly distributed throughout the whole nanocrystal encompassing both the interior lattice and surface, successfully stabilizing their "soft" crystal lattice and passivating surface defects. This approach effectively mitigates their intrinsic instability issues including light-induced phase segregation. As a result, light-emitting devices based on these QDs exhibit exceptional efficiency and remarkable stability.
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Affiliation(s)
- Zhaoyu Wang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Youchao Wei
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian 350108, China
| | - Yameng Chen
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian 350108, China
| | - Haoyu Zhang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Di Wang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian 350108, China
| | - Jianxi Ke
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian 350108, China
| | - Yongsheng Liu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian 350108, China
| | - Maochun Hong
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian 350108, China
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
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4
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Dávid A, Morát J, Chen M, Gao F, Fahlman M, Liu X. Mapping Uncharted Lead-Free Halide Perovskites and Related Low-Dimensional Structures. MATERIALS (BASEL, SWITZERLAND) 2024; 17:491. [PMID: 38276430 PMCID: PMC10819976 DOI: 10.3390/ma17020491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/13/2024] [Accepted: 01/16/2024] [Indexed: 01/27/2024]
Abstract
Research on perovskites has grown exponentially in the past decade due to the potential of methyl ammonium lead iodide in photovoltaics. Although these devices have achieved remarkable and competitive power conversion efficiency, concerns have been raised regarding the toxicity of lead and its impact on scaling up the technology. Eliminating lead while conserving the performance of photovoltaic devices is a great challenge. To achieve this goal, the research has been expanded to thousands of compounds with similar or loosely related crystal structures and compositions. Some materials are "re-discovered", and some are yet unexplored, but predictions suggest that their potential applications may go beyond photovoltaics, for example, spintronics, photodetection, photocatalysis, and many other areas. This short review aims to present the classification, some current mapping strategies, and advances of lead-free halide double perovskites, their derivatives, lead-free perovskitoid, and low-dimensional related crystals.
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Affiliation(s)
- Anna Dávid
- Laboratory of Organic Electronics (LOE), Department of Science and Technology, Linköping University, 60174 Norrköping, Sweden;
| | - Julia Morát
- Department of Physics, Chemistry and Biology (IFM), Linköping University, 58183 Linköping, Sweden; (J.M.); (M.C.); (F.G.)
| | - Mengyun Chen
- Department of Physics, Chemistry and Biology (IFM), Linköping University, 58183 Linköping, Sweden; (J.M.); (M.C.); (F.G.)
| | - Feng Gao
- Department of Physics, Chemistry and Biology (IFM), Linköping University, 58183 Linköping, Sweden; (J.M.); (M.C.); (F.G.)
| | - Mats Fahlman
- Laboratory of Organic Electronics (LOE), Department of Science and Technology, Linköping University, 60174 Norrköping, Sweden;
| | - Xianjie Liu
- Laboratory of Organic Electronics (LOE), Department of Science and Technology, Linköping University, 60174 Norrköping, Sweden;
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5
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Kim S, Lee JH, Park JS, Kim GY, Kang M, Jo SB, Myoung JM, Lee JW, Cho JH. Enhancing Efficiency and Stability of Tin Halide Perovskite Light-Emitting Diodes via Engineered Alkali/Multivalent Metal Salts. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 38031845 DOI: 10.1021/acsami.3c12987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2023]
Abstract
Sn-based perovskite light-emitting diodes (PeLEDs) have emerged as promising alternatives to Pb-based PeLEDs with their rapid increase in performance owing to the various research studies on inhibiting Sn oxidation. However, the absence of defect passivation strategies for Sn-based perovskite LEDs necessitates further research in this field. We performed systematic studies to investigate the design rules for defect passivation agents for Sn-based perovskites by incorporating alkali/multivalent metal salts with various cations and anions. From the computational and experimental analyses, sodium trifluoromethanesulfonate (NaTFMS) was found to be the most effective passivation agent for PEA2SnI4 films among the explored candidate agents owing to favorable reaction energetics to passivate iodide Frenkel defects. Consequently, the incorporation of NaTFMS facilitates the formation of uniform films with relatively large crystals and reduced Sn4+. The NaTFMS-containing PEA2SnI4 PeLEDs demonstrate an improved luminance of 138.9 cd/m2 and external quantum efficiency (EQE) of 0.39% with an improved half-lifetime of more than threefold. This work provides important insight into the design of defect passivation agents for Sn-based perovskites.
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Affiliation(s)
- Seonkwon Kim
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Joo-Hong Lee
- Department of Nano Engineering and Department of Nano Science and Technology, SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Ji-Sang Park
- Department of Nano Engineering and Department of Nano Science and Technology, SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Ga-Yeong Kim
- Department of Nano Engineering and Department of Nano Science and Technology, SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Minsu Kang
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Sae Byeok Jo
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Jae-Min Myoung
- Department of Materials Science and Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Jin-Wook Lee
- Department of Nano Engineering and Department of Nano Science and Technology, SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Republic of Korea
- SKKU Institute of Energy Science & Technology (SIEST), Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Jeong Ho Cho
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 03722, Republic of Korea
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6
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Yuan C, He M, Liao X, Liu M, Zhang Q, Wan Q, Qu Z, Kong L, Li L. Interface defects repair of core/shell quantum dots through halide ion penetration. Chem Sci 2023; 14:13119-13125. [PMID: 38023521 PMCID: PMC10664535 DOI: 10.1039/d3sc04136k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 10/31/2023] [Indexed: 12/01/2023] Open
Abstract
The interface defects of core-shell colloidal quantum dots (QDs) affect their optoelectronic properties and charge transport characteristics. However, the limited available strategies pose challenges in the comprehensive control of these interface defects. Herein, we introduce a versatile strategy that effectively addresses both surface and interface defects in QDs through simple post-synthesis treatment. Through the combination of fine chemical etching methods and spectroscopic analysis, we have revealed that halogens can diffuse within the crystal structure at elevated temperatures, acting as "repairmen" to rectify oxidation and significantly reducing interface defects within the QDs. Under the guidance of this protocol, InP core/shell QDs were synthesized by a hydrofluoric acid-free method with a full width at half-maximum of 37.0 nm and an absolute quantum yield of 86%. To further underscore the generality of this strategy, we successfully applied it to CdSe core/shell QDs as well. These findings provide fundamental insights into interface defect engineering and contribute to the advancement of innovative solutions for semiconductor nanomaterials.
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Affiliation(s)
- Changwei Yuan
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240 P. R. China
| | - Mengda He
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240 P. R. China
| | - Xinrong Liao
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240 P. R. China
| | - Mingming Liu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240 P. R. China
| | - Qinggang Zhang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240 P. R. China
| | - Qun Wan
- Macao Institute of Materials Science and Engineering (MIMSE), Macau University of Science and Technology Taipa Macao 999078 P. R. China
| | - Zan Qu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240 P. R. China
| | - Long Kong
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240 P. R. China
| | - Liang Li
- Macao Institute of Materials Science and Engineering (MIMSE), Macau University of Science and Technology Taipa Macao 999078 P. R. China
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7
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Wang S, Wu C, Yao H, Xie L, Xiao Y, Ding L, Hao F. Defect Compensation and Lattice Stabilization Enables High Voltage Output in Tin Halide Perovskite Solar Cells. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2308877. [PMID: 37948431 DOI: 10.1002/smll.202308877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Indexed: 11/12/2023]
Abstract
Tin halide perovskite solar cells (PSCs) are regarded as the most promising lead-free alternatives for photovoltaic applications. However, they still suffer from uncompetitive photovoltaic performance because of the facile Sn2+ oxidation and Sn-related defects. Herein, a defect and carrier management strategy by using diaminopyridine (DP) and 4-bromo-2,6-diaminopyridine (4BrDP) as multifunctional additives for tin halide perovskites is reported. Both DP and 4BrDP induced strong interaction with tin perovskites by coordinate bonding and N─H···I hydrogen bonding, which greatly suppresses the micro-strain and Urbach energy of tin halide perovskite films. The strong hydrogen bonding inhibits the formation of I3 - and related defect density. Meanwhile, the electron-donor species of halogen bond in 4BrDP provides higher reactivity of 2 and 6 sites, which indicates stronger passivation ability with tin halide perovskites. These advances enable a champion power conversion efficiency (PCE) of 13.40% in 4BrDP-processed devices with remarkable improvement in both open-circuit voltage (Voc ) of 881 mV and fill factor (FF) of 71.26%. The 4BrDP devices retain 91% and 82% of the pristine PCE after 2000 h storage in N2 atmosphere and 1000 h under 85 °C, respectively. Therefore, this work provides new insight into molecular design for high-performance and stable lead-free optoelectronics.
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Affiliation(s)
- Shurong Wang
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, China
| | - Cheng Wu
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, China
| | - Huanhuan Yao
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, China
| | - Lisha Xie
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
| | - Yu Xiao
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, China
| | - Liming Ding
- Center for Excellence in Nanoscience (CAS), Key Laboratory of Nanosystem and, Hierarchical Fabrication (CAS), National Center for Nanoscience and Technology, Beijing, 100190, China
| | - Feng Hao
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, China
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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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9
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Han D, Wang J, Agosta L, Zang Z, Zhao B, Kong L, Lu H, Mosquera-Lois I, Carnevali V, Dong J, Zhou J, Ji H, Pfeifer L, Zakeeruddin SM, Yang Y, Wu B, Rothlisberger U, Yang X, Grätzel M, Wang N. Tautomeric mixture coordination enables efficient lead-free perovskite LEDs. Nature 2023; 622:493-498. [PMID: 37557914 DOI: 10.1038/s41586-023-06514-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 08/02/2023] [Indexed: 08/11/2023]
Abstract
Lead halide perovskite light-emitting diodes (PeLEDs) have demonstrated remarkable optoelectronic performance1-3. However, there are potential toxicity issues with lead4,5 and removing lead from the best-performing PeLEDs-without compromising their high external quantum efficiencies-remains a challenge. Here we report a tautomeric-mixture-coordination-induced electron localization strategy to stabilize the lead-free tin perovskite TEA2SnI4 (TEAI is 2-thiopheneethylammonium iodide) by incorporating cyanuric acid. We demonstrate that a crucial function of the coordination is to amplify the electronic effects, even for those Sn atoms that aren't strongly bonded with cyanuric acid owing to the formation of hydrogen-bonded tautomeric dimer and trimer superstructures on the perovskite surface. This electron localization weakens adverse effects from Anderson localization and improves ordering in the crystal structure of TEA2SnI4. These factors result in a two-orders-of-magnitude reduction in the non-radiative recombination capture coefficient and an approximately twofold enhancement in the exciton binding energy. Our lead-free PeLED has an external quantum efficiency of up to 20.29%, representing a performance comparable to that of state-of-the-art lead-containing PeLEDs6-12. We anticipate that these findings will provide insights into the stabilization of Sn(II) perovskites and further the development of lead-free perovskite applications.
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Affiliation(s)
- Dongyuan Han
- College of Physics, Jilin University, Changchun, China
| | - Jie Wang
- College of Physics, Jilin University, Changchun, China
| | - Lorenzo Agosta
- Laboratory of Computational Chemistry and Biochemistry, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Ziang Zang
- College of Physics, Jilin University, Changchun, China
| | - Bin Zhao
- College of Physics, Jilin University, Changchun, China
| | - Lingmei Kong
- Key Laboratory of Advanced Display and System Applications of Ministry of Education, Shanghai University, Shanghai, China
| | - Haizhou Lu
- Laboratory of Photonics and Interfaces, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
- Key Laboratory of MEMS of Ministry of Education, School of Integrated Circuits, Southeast University, Nanjing, China.
| | - Irea Mosquera-Lois
- Laboratory of Computational Chemistry and Biochemistry, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Virginia Carnevali
- Laboratory of Computational Chemistry and Biochemistry, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Jianchao Dong
- College of Physics, Jilin University, Changchun, China
| | - Jianheng Zhou
- College of Physics, Jilin University, Changchun, China
| | - Huiyu Ji
- College of Physics, Jilin University, Changchun, China
| | - Lukas Pfeifer
- Laboratory of Photonics and Interfaces, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Shaik M Zakeeruddin
- Laboratory of Photonics and Interfaces, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Yingguo Yang
- Shanghai Synchrotron Radiation Facility (SSRF), Zhangjiang Lab, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, China
- School of Microelectronics, Fudan University, Shanghai, China
| | - Bo Wu
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology and Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, China
| | - Ursula Rothlisberger
- Laboratory of Computational Chemistry and Biochemistry, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Xuyong Yang
- Key Laboratory of Advanced Display and System Applications of Ministry of Education, Shanghai University, Shanghai, China.
| | - Michael Grätzel
- Laboratory of Photonics and Interfaces, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
| | - Ning Wang
- College of Physics, Jilin University, Changchun, China.
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10
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Chen J, Wu H, Huang Y, Xu J, Lu X, Zhou W, Song J, Huang R. Effect of CrF 3 Addition on Photoluminescence Properties of Lead-Free Cs 4SnBr 6-xF x Zero-Dimensional Perovskite. MATERIALS (BASEL, SWITZERLAND) 2023; 16:6309. [PMID: 37763588 PMCID: PMC10532708 DOI: 10.3390/ma16186309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 09/13/2023] [Accepted: 09/18/2023] [Indexed: 09/29/2023]
Abstract
Zero-dimensional (0D) tin halide perovskites, characterized by their broadband and adjustable emissions, high photoluminescence quantum yield, and absence of self-absorption, are crucial for the fabrication of high-efficiency optoelectronic devices, such as LEDs, solar cells, and sensors. Despite these attributes, boosting their emission efficiency and stability poses a significant challenge. In this work, Cr3+-doped Cs4SnBr6-xFx perovskites were synthesized using a water-assisted wet ball-milling method. The effect of CrF3 addition on photoluminescence properties of Cs4SnBr6-xFx Perovskites was investigated. We found that Cr3+-doped Cs4SnBr6-xFx Perovskites exhibit a broad emission band, a substantial Stokes shift, and an efficient green light emission centered at about 525 nm at ambient temperature. The derived photoluminescence quantum yield amounted to as high as 56.3%. In addition, these Cr3+-doped Cs4SnBr6-xFx perovskites outperform their undoped counterparts in terms of thermal stability. Through a comprehensive analysis of photoluminescence measurements, our findings suggested that the elevated photoluminescence quantum yield can be attributed to the enhanced exciton binding energy of self-trapped excitons (STEs) and the suitable electron-phonon coupling resulting from the substantial distortion of [SnBr6]4- octahedra instigated by the addition of CrF3.
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Affiliation(s)
| | | | | | | | | | | | | | - Rui Huang
- School of Materials Science and Engineering, Hanshan Normal University, Chaozhou 521041, China
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Zhu X, Pan Z, Xu T, Shao X, Gao Z, Xie Q, Ying Y, Pei W, Lin H, Wang J, Tang X, Chen W, Liu Y. Capping Ligand Engineering Enables Stable CsPbBr 3 Perovskite Quantum Dots toward White-Light-Emitting Diodes. Inorg Chem 2023. [PMID: 37229601 DOI: 10.1021/acs.inorgchem.3c01092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
All-inorganic perovskite quantum dots (PeQDs) have sparked extensive research focus on white-light-emitting diodes (WLEDs), but stability and photoluminescence efficiency issues are still remain obstacles impeding their practical application. Here, we reported a facile one-step method to synthesize CsPbBr3 PeQDs at room temperature using branched didodecyldimethylammonium fluoride (DDAF) and short-chain-length octanoic acid as capping ligands. The obtained CsPbBr3 PeQDs have a near-unity photoluminescence quantum yield of 97% due to the effective passivation of DDAF. More importantly, they exhibit much improved stability against air, heat, and polar solvents, maintaining >70% of initial PL intensity. Making use of these excellent optoelectronic properties, WLEDs based on CsPbBr3 PeQDs, CsPbBr1.2I1.8 PeQDs, and blue LEDs were fabricated, which show a color gamut of 122.7% of the National Television System Committee standard, a luminous efficacy of 17.1 lm/W, with a color temperature of 5890 K, and CIE coordinates of (0.32, 0.35). These results indicate that the CsPbBr3 PeQDs have great practical potential in wide-color-gamut displays.
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Affiliation(s)
- Xiaolin Zhu
- College of Physical Science and Technology & Microelectronics Industry Research Institute, Yangzhou University, Yangzhou 225002, P. R. China
| | - Zhangcheng Pan
- College of Physical Science and Technology & Microelectronics Industry Research Institute, Yangzhou University, Yangzhou 225002, P. R. China
| | - Tianyue Xu
- College of Physical Science and Technology & Microelectronics Industry Research Institute, Yangzhou University, Yangzhou 225002, P. R. China
| | - Xiuwen Shao
- College of Physical Science and Technology & Microelectronics Industry Research Institute, Yangzhou University, Yangzhou 225002, P. R. China
| | - Zhaoju Gao
- College of Physical Science and Technology & Microelectronics Industry Research Institute, Yangzhou University, Yangzhou 225002, P. R. China
| | - Qingyu Xie
- College of Physical Science and Technology & Microelectronics Industry Research Institute, Yangzhou University, Yangzhou 225002, P. R. China
| | - Yupeng Ying
- College of Physical Science and Technology & Microelectronics Industry Research Institute, Yangzhou University, Yangzhou 225002, P. R. China
| | - Wei Pei
- College of Physical Science and Technology & Microelectronics Industry Research Institute, Yangzhou University, Yangzhou 225002, P. R. China
| | - Hao Lin
- Institute of Applied Physics and Materials Engineering, University of Macau, Taipa, Macao SAR 999078, P. R. China
| | - Jia Wang
- Department of Physics, Umeå University, Umeå SE-90187, Sweden
| | - Xiaosheng Tang
- College of Optoelectronic Engineering, Chongqing University of Post and Telecommunications, Chongqing 400065, People's Republic of China
| | - Weiwei Chen
- College of Optoelectronic Engineering, Chongqing University of Post and Telecommunications, Chongqing 400065, People's Republic of China
| | - Yongfeng Liu
- College of Physical Science and Technology & Microelectronics Industry Research Institute, Yangzhou University, Yangzhou 225002, P. R. China
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