CsPbX3/Cs4PbX6 core/shell perovskite nanocrystals

被引:118
作者
Jia, Chao [1 ]
Li, Hui [1 ]
Meng, Xianwei [2 ]
Li, Hongbo [1 ]
机构
[1] Beijing Inst Technol, Sch Mat Sci & Engn, Beijing Key Lab Construct Tailorable Adv Funct Ma, Beijing 10081, Peoples R China
[2] Chinese Acad Sci, Tech Inst Phys & Chem, CAS Key Lab Cryogen, Lab Controllable Preparat & Applicat Nanomat, Beijing 100190, Peoples R China
基金
北京市自然科学基金; 中国国家自然科学基金;
关键词
LEAD HALIDE PEROVSKITES; CSPBX3; NANOCRYSTALS; I NANOCRYSTALS; QUANTUM DOTS; COLLOIDAL SYNTHESIS; CATION-EXCHANGE; ANION-EXCHANGE; CS4PBX6; X; TRANSFORMATION; BR;
D O I
10.1039/c8cc02802h
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The synthesis of core/shell perovskite nanocrystals was demonstrated for the first time by applying a seeded growth approach. The obtained core/shell nanocrystals were shown to consist of a light-emitting CsPbX3 core with a narrow band gap and a Cs4PbX6 passivating shell with a large band gap (>3.2 eV), and to therefore display an improved photoluminescence quantum yield.
引用
收藏
页码:6300 / 6303
页数:4
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