Enhancing air-stability of CH3NH3PbBr3 perovskite quantum dots by in-situ growth in metal-organic frameworks and their applications in light emitting diodes

被引：36
作者：
Zhang, Qianqian [1 ]
Wu, Haishan [1 ]
Lin, Wei [1 ]
Wang, Jiannan [1 ]
Chi, Yuwu [1 ]
机构：
[1] Fuzhou Univ, State Key Lab Photocatalysis Energy & Environm, MOE Key Lab Analyt Sci Food Safety & Biol, Coll Chem, Fuzhou 350108, Fujian, Peoples R China
来源：
JOURNAL OF SOLID STATE CHEMISTRY | 2019年 / 272卷
基金：
中国国家自然科学基金;
关键词：
Air-stable; Perovskite quantum dots; Metal-organic frameworks; Fluorescence; Light emitting diodes; HIGHLY LUMINESCENT; HALIDE PEROVSKITES; NANOCRYSTALS; EFFICIENT; FILMS; DEGRADATION; FABRICATION; RELEASE; MOF;
D O I：
10.1016/j.jssc.2019.02.019
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Perovskite quantum dots (PQDs) are getting more and more attention for their unique optical properties such as high photoluminescence quantum yield, narrow emission spectrum, and adjustable emission wavelength. However, PQDs, especially, CH3NH3PbX3 PQDs have very poor stability due to their easy decomposition by water and oxygen in the air. Herein, we grew nano-sized CH3NH3PbBr3 PQDs in situ within a kind of micro-sized metal organic frameworks (Bio-MOF-1) to obtain MOFs-protected PQD composites (PQDs-Bio-MOF-1). The MOF protection only enables the PQD composites to maintain the fluorescence characteristics of PQDs, but also obviously improves the stability of PQDs in the air, showing promising application in light-emitting diodes (LEDs).
引用
收藏
页码：221 / 226
页数：6
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