Synthesis of Monodisperse CsPbBr<sub>3</sub>@SiO<sub>2</sub> Nanoparticles for Flexible Display and Anti-counterfeiting

DING Meng-yu; ZHENG Biao; WEI Wei-ping; CHEN Lu-yao; WU Xiao-ping; HONG Jin-quan; HUANG Chun-lei; WANG Jun

doi:10.37188/CJL.20220156

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Synthesis of Monodisperse CsPbBr₃@SiO₂ Nanoparticles for Flexible Display and Anti-counterfeiting

Luminescence Applications and Interdisciplinary Fields | 更新时间：2022-10-19

- Synthesis of Monodisperse CsPbBr₃@SiO₂ Nanoparticles for Flexible Display and Anti-counterfeiting
  增强出版
- Chinese Journal of Luminescence Vol. 43, Issue 8, Pages: 1309-1318(2022)
- 作者机构：
  
  1.闽江学院材料与化学工程学院，福建福州　350108
  2.福建工程学院材料科学与工程学院，福建福州　350118
  3.闽江学院物理与电子信息工程学院，福建福州　350108
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China(12004153;12174172);Natural Science Foundation of Fujian(2019J05110;2022J011118);Science and Technology Program of Fuzhou City(2021⁃SG⁃271);Fuzhou Institute of Oceanography Project(2021F06)
- DOI：10.37188/CJL.20220156
  CLC： O482.31
- Published：05 August 2022，
  
  Received：03 May 2022，
  
  Revised：23 May 2022，
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丁梦宇,郑标,魏维平等.单分散CsPbBr₃@SiO₂纳米颗粒制备及其在柔性显示与荧光防伪中的应用[J].发光学报,2022,43(08):1309-1318.

DING Meng-yu,ZHENG Biao,WEI Wei-ping,et al.Synthesis of Monodisperse CsPbBr₃@SiO₂ Nanoparticles for Flexible Display and Anti-counterfeiting[J].Chinese Journal of Luminescence,2022,43(08):1309-1318.
丁梦宇,郑标,魏维平等.单分散CsPbBr₃@SiO₂纳米颗粒制备及其在柔性显示与荧光防伪中的应用[J].发光学报,2022,43(08):1309-1318. DOI： 10.37188/CJL.20220156.

DING Meng-yu,ZHENG Biao,WEI Wei-ping,et al.Synthesis of Monodisperse CsPbBr₃@SiO₂ Nanoparticles for Flexible Display and Anti-counterfeiting[J].Chinese Journal of Luminescence,2022,43(08):1309-1318. DOI： 10.37188/CJL.20220156.

摘要

为了提高钙钛矿纳米晶CsPb

（

=Cl， Br， I）在水或热等环境中的稳定性，本文采用热注射法合成了3‐氨丙基‐三乙氧基硅烷（APTES）修饰的CsPbBr

纳米晶，在此基础上，以正硅酸四甲基酯（TMOS）为硅源制备了CsPbBr

@SiO

核壳结构纳米颗粒。通过X射线衍射、透射电子显微镜和荧光光谱仪等测试手段对样品的结构、形貌、光谱特性及稳定性等进行了分析。结果表明，CsPbBr

纳米晶表面形成了SiO

壳层，同时，CsPbBr

@SiO

纳米颗粒仍保持优异的光学性能。更重要的是，SiO

壳层显著提高了CsPbBr

的水、热稳定性，CsPbBr

@SiO

在60 ℃加热30 min后发光强度可以保持初始强度的81%，浸水100 min后发光强度仍保持初始强度的75.2%。此外，我们设计了CsPbBr

@SiO

‐聚二甲基硅氧烷（PDMS）复合薄膜，实现了CsPbBr

@SiO

在柔性显示与荧光防伪方面的应用，有望为柔性显示和荧光防伪材料的开发提供参考。

Abstract

To improve the stabilities of all-inorganic perovskite nanocrystals（NCs） CsPb

（

=Cl， Br， I） under water or thermal conditions， 3-aminopropyl-triethoxysilane（APTES） modified CsPbBr

NCs were synthesized by a hot-injection method， and then CsPbBr

@SiO

core-shell nanoparticles（NPs） were prepared by using tetramethyl orthosilicate（TMOS） as silicon source. The structures， morphologies， optical properties and stabilities of the CsPbBr

@SiO

samples were characterized and analyzed by X-ray diffractions， transmission electron microscopy and fluorescence spectrometer. The results show that the SiO

shell forms uniformly on surface of CsPbBr

NCs， which still shows excellent optical properties. More importantly， the stabilities of CsPbBr

@SiO

NPs are significantly improved in water or thermal atmosphere. The photoluminescence intensity of CsPbBr

@SiO

remains 81% under heated at 60 ℃ for 30 min， and it remains 75.2% when mixed with water for 100 min. Furthermore， we fabricated CsPbBr

@SiO

-polydimethylsiloxane（PDMS） composite films to explore the applications of CsPbBr

@SiO

in the field of flexible display and fluorescent anti-counterfeiting.

关键词

钙钛矿纳米晶核壳结构光学性能柔性显示荧光防伪

Keywords

perovskite nanocrystalscore-shell structureoptical propertiesflexible displayfluorescent anti-counterfeiting

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College of Physics and Electronics Engineering， Minjiang University， Fuzhou 350108， China） *Corresponding Authors， E-mail： biaozheng@mju.edu.cn；wangjun2@mju.edu

State Key Laboratory of Integrated Optoelectronics， College of Electronic Science and Engineering， Jilin University

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⁰

Synthesis of Monodisperse CsPbBr3@SiO2 Nanoparticles for Flexible Display and Anti-counterfeiting

DOI：10.37188/CJL.20220156

摘要

Abstract

关键词

Keywords

references

Synthesis of Monodisperse CsPbBr₃@SiO₂ Nanoparticles for Flexible Display and Anti-counterfeiting