Preparation of heterostructure quantum dots towards wide-colour-gamut display

被引：9
作者：
Cheng, Rui [1 ]
Shen, Haixia [1 ]
Chen, Zhangchi [1 ,2 ]
Li, Fucheng [1 ]
Li, Ge [1 ]
Wang, Cai-Feng [1 ]
Chen, Su [1 ]
机构：
[1] Nanjing Tech Univ, State Key Lab Mat Oriented Chem Engn, Coll Chem Engn, Nanjing 210009, Jiangsu, Peoples R China
[2] Nanjing Foreign Language Sch, Nanjing, Jiangsu, Peoples R China
来源：
MATERIALS LETTERS | 2019年 / 254卷
基金：
中国国家自然科学基金;
关键词：
Luminescence; Nanoparticles; Heterostructure; PL stability; Display;
D O I：
10.1016/j.matlet.2019.07.021
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Perovskite quantum dots (PQDs) have excellent optical properties such as high photoluminescence quantum yield (PL QY) and high colour purity, and thus show promising application prospects in photoelectric devices. However, the poor stability of PQDs (especially red-emissive PQDs) greatly limits their applications. Herein, we synthesized CsPbBr3-xIx/ZnSe heterostructures via in-situ formation of ZnSe QDs in the red-emissive CsPbBr3-xIx PQDs, which maintains the high PL QY (similar to 70%) but greatly enhances the stability of PQDs. Subsequently, we utilized the red-emissive CsPbBr3-xIx/ZnSe heterostructures and green-emissive CsPbBr3 PQDs as the light conversion materials to fabricate a QD film, which was then applied in backlight display with ultra-wide colour gamut up to NTSC 125%. (C) 2019 Elsevier B.V. All rights reserved.
引用
收藏
页码：171 / 174
页数：4
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