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<p>Halogenated perovskite was an excellent optical material, but its inherent instability limited its rapid development in optoelectronic devices. The prepared CsPbX<sub>3</sub>@Glass (X = Br, I) has excellent stability and was an ideal choice for developing wide-gamut liquid crystal displays (LCDs). It was found that the B<sub>2</sub>O<sub>3</sub> additive was beneficial to the loose and compact glass network structure, which promoted the nucleation and growth of perovskite nanocrystals (PNCs) in the glass, and an appropriate amount of additive was beneficial to inhibit the non-radiative recombination of perovskite, achieving a high photoluminescence quantum yield (PLQY) of 85% (CsPbBr<sub>3</sub>@Glass). It was found that the stability of glass powder with different particle sizes was different. We found out the range of glass powder particle sizes with the best stability and combined it with polymer materials to form a light conversion film. In addition, the LCD with long-term stability was designed by using the light conversion film of CsPbX<sub>3</sub>@Glass@PS (X = Br, I), which has an excellent display effect.</p>

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Glass network structure adjustment and particle size screening to obtain ultra-stable luminescent perovskite glass and its application

  • 期刊论文

  • 发表日期：

    2025年5月29日

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  • Enrou Mei,
  • Han Zhao,
  • Ziyi Jiang,
  • Shuo Wang,
  • Xiaojuan Liang,
  • Weidong Xiang

摘要

Halogenated perovskite was an excellent optical material, but its inherent instability limited its rapid development in optoelectronic devices. The prepared CsPbX3@Glass (X = Br, I) has excellent stability and was an ideal choice for developing wide-gamut liquid crystal displays (LCDs). It was found that the B2O3 additive was beneficial to the loose and compact glass network structure, which promoted the nucleation and growth of perovskite nanocrystals (PNCs) in the glass, and an appropriate amount of additive was beneficial to inhibit the non-radiative recombination of perovskite, achieving a high photoluminescence quantum yield (PLQY) of 85% (CsPbBr3@Glass). It was found that the stability of glass powder with different particle sizes was different. We found out the range of glass powder particle sizes with the best stability and combined it with polymer materials to form a light conversion film. In addition, the LCD with long-term stability was designed by using the light conversion film of CsPbX3@Glass@PS (X = Br, I), which has an excellent display effect.