Highly Efficient and Stable Eu3+-Doped CsPbBr3/Cs4PbBr6 Perovskites for White Light-Emitting Diodes

被引：2
作者：
Wang, Song [1 ]
Xu, Yan [1 ]
Chen, Renjie [1 ]
Zhu, Mengmeng [1 ]
Wang, Muyi [1 ]
Cao, Mengmeng [1 ]
Liu, Yunpeng [1 ]
Ding, Haojie [1 ]
Zhang, Shulan [1 ]
Bai, Jueyao [1 ]
Ren, Jun [1 ]
Xuan, Tongtong [2 ,3 ]
Li, Huili [1 ]
机构：
[1] East China Normal Univ, Engn Res Ctr Nanophoton & Adv Instrument, Sch Phys & Elect Sci, Minist Educ, Shanghai 200241, Peoples R China
[2] Xiamen Univ, Coll Mat, Fujian Key Lab Mat Genome, Xiamen 361005, Peoples R China
[3] Xiamen Univ, Shenzhen Res Inst, Shenzhen 518000, Peoples R China
来源：
COATINGS | 2022年 / 12卷 / 04期
基金：
中国国家自然科学基金;
关键词：
perovskite; doping engineering; luminescent materials; stability; light-emitting diode; QUANTUM DOTS; NANOCRYSTALS; PHOTOLUMINESCENCE; NANOCOMPOSITES; COMPOSITES; LANTHANIDE; STABILITY; PHASE; SIZE;
D O I：
10.3390/coatings12040512
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
All-inorganic halide perovskite nanomaterials have a high application potential in the field of display and lighting because of unique photoelectric properties. However, these materials suffer from problems related to poor water and thermal stabilities. In this study, green Eu3+-doped CsPbBr3/Cs4PbBr6 perovskite composites that were synthesized by a saturated recrystallization method at room temperature showed an enhanced photoluminescence quantum yield of 87% and superior water and thermal stabilities to that of undoped perovskites. Finally, green Eu3+-doped CsPbBr3/Cs4PbBr6 perovskite composites were fabricated into white light-emitting diodes (WLEDs) with a wide color gamut (124% of the National Television System Committee standard) and a high efficiency of 43.06 lm/W.
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页数：11
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