Femtosecond-Laser-Induced Precipitation of CsPbBr3 Perovskite Nanocrystals in Glasses for Solar Spectral Conversion

被引:41
作者
Hu, Yuzhou [1 ]
Zhang, Wenchao [1 ]
Ye, Ying [1 ]
Zhao, Zhiyong [1 ]
Liu, Chao [1 ]
机构
[1] Wuhan Univ Technol, State Key Lab Silicate Mat Architectures, 122 Luoshi Rd, Wuhan 30070, Peoples R China
来源
ACS APPLIED NANO MATERIALS | 2020年 / 3卷 / 01期
关键词
femtosecond laser; CsPbBr3; all-inorganic perovskite; nanocrystals; photoluminescence; glass; spectral conversion; solar concentrator; LIGHT-EMITTING-DIODES; QUANTUM DOTS; ELEMENT DISTRIBUTION; OPTICAL-PROPERTIES; CSPBX3; CDSE; NANOPARTICLES; STABILITY; MIGRATION; EMISSION;
D O I
10.1021/acsanm.9b02362
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Inorganic perovskite quantum dots (QDs) and nanocrystals (NCs) have attracted much attention in recent years because of their high photoluminescence (PL) quantum yield (QY), narrow full width at half-maximum, and wide tunability across the whole visible range. In this work, space- and size-controlled precipitation of CsPbBr3 perovskite NCs was realized through a femtosecond laser-direct-writing method. Precipitation of CsPbBr3 NCs in glasses was confirmed by energy-dispersive spectroscopy, transmission electron microscopy analysis, and PL. Growth of CsPbBr3 perovskite NCs in glasses was modulated by femtosecond laser irradiation parameters such as the repetition rate, pulse energy, and scanning rate, and PL in the range spanning from blue to green was achieved. With the well-designed arrangement of CsPbBr3 NCs and the reduction of self-absorption emission, a solar concentrator fabricated by femtosecond laser irradiation can realize spectral conversion and enhance the quantum efficiency of solar cells.
引用
收藏
页码:850 / 857
页数:15
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