<italic style="font-style: italic">In</italic>-<italic style="font-style: italic">situ</italic> Synthesis and Performance of Sodium Chloride/ Cesium Lead Bromide Perovskite Composite Film

DAI Ke-cheng; ZHAI Yue; WU Na; MEI Hang; ZHANG Hong; ZHU Qiang-qiang; WANG Le

doi:10.37188/CJL.20220129

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In-situ Synthesis and Performance of Sodium Chloride/ Cesium Lead Bromide Perovskite Composite Film

Synthesis and Properties of Materials | 更新时间：2022-10-19

- In-situ Synthesis and Performance of Sodium Chloride/ Cesium Lead Bromide Perovskite Composite Film
  增强出版
- Chinese Journal of Luminescence Vol. 43, Issue 8, Pages: 1188-1197(2022)
- 作者机构：
  
  中国计量大学光学与电子科技学院，浙江杭州　310018
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China(62075203;51832005;12104431;51702339);Preeminence Youth Science Fund Project of Zhejiang Province(LR19F050001);Key Research and Development Program of Zhejiang Province(2021C05005);The Fundamental Research Funds for The Provincial Universities of Zhejiang Province(2022YW02)
- DOI：10.37188/CJL.20220129
  CLC： O482.31
- Published：05 August 2022，
  
  Received：10 April 2022，
  
  Revised：25 April 2022，
- 稿件说明：
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戴克城,翟玥,吴娜等.氯化钠/铯铅溴钙钛矿复合薄膜的原位制备及性能[J].发光学报,2022,43(08):1188-1197.

DAI Ke-cheng,ZHAI Yue,WU Na,et al.In-situ Synthesis and Performance of Sodium Chloride/ Cesium Lead Bromide Perovskite Composite Film[J].Chinese Journal of Luminescence,2022,43(08):1188-1197.
戴克城,翟玥,吴娜等.氯化钠/铯铅溴钙钛矿复合薄膜的原位制备及性能[J].发光学报,2022,43(08):1188-1197. DOI： 10.37188/CJL.20220129.

DAI Ke-cheng,ZHAI Yue,WU Na,et al.In-situ Synthesis and Performance of Sodium Chloride/ Cesium Lead Bromide Perovskite Composite Film[J].Chinese Journal of Luminescence,2022,43(08):1188-1197. DOI： 10.37188/CJL.20220129.

摘要

全无机铯铅卤钙钛矿因其优异的光电性能受到广泛关注。然而，薄膜较差的稳定性和制备中大量昂贵且有毒有机溶剂的使用，严重阻碍了其商业化应用进程。在本工作中，水溶液被用作配制含氯化钠（NaCl）的钙钛矿前驱液的溶剂。通过一步溶液法获得原位生长的NaCl/CsPbBr

钙钛矿复合薄膜，并在该过程中引入二甲基亚砜（DMSO）溶液来优化其晶体结构及光学性能。研究表明，NaCl和DMSO的协同作用可以调控复合薄膜中晶粒的形貌、提高相纯度并增强荧光发射。当DMSO和前驱体溶液体积比为1∶2时，复合薄膜呈现出最佳的绿光发射，荧光量子效率达48.2%。此外，得益于NaCl的有效复合及优化的晶体结构，所制备的复合薄膜具有增强的稳定性。该设计思路有利于制备柔性、大面积和高稳定性显示用荧光转换薄膜。

Abstract

All-inorganic cesium lead halide perovskite film has received extensive attention due to their excellent photoelectric properties. However， the poor stability of the perovskite film and the use of numerous expensive as well as toxic organic solvents during the preparation process severely hinder its commercial application process. In this work， aqueous solution is used as the solvent to prepare a perovskite precursor solution containing with sodium chloride（NaCl）. The

situ

NaCl/CsPbBr

cesium lead bromide perovskite composite film is obtained by a one-step solution method， and dimethyl sulfoxide（DMSO） solution is introduced to optimize the crystal structure and optical properties of the composite film. It is found that the synergistic effect of NaCl and DMSO can change the morphology of the crystal grains， improve the phase purity and enhance the fluorescence emission of the composite film. The composite film exhibits the optimal green light emission with the 48.2% photoluminescence quantum yield when the volume ratio of DMSO and the precursor solution reaches to 1∶2. In addition， benefiting from the effective combination of NaCl and the optimized crystal structure， the prepared composite film has the enhanced stability. The design is beneficial to the preparation of flexible， large-area and high-stability display fluorescence conversion films.

关键词

钙钛矿薄膜原位合成氯化钠发光性能稳定性

Keywords

perovskite filmin-situ synthesissodium chlorideluminescence propertiesstability

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In-situ Synthesis and Performance of Sodium Chloride/ Cesium Lead Bromide Perovskite Composite Film

DOI：10.37188/CJL.20220129

摘要

Abstract

关键词

Keywords

references