Strongly enhanced free-exciton luminescence in microcrystalline CsPbBr3 films

被引：18
|
作者：
Kondo, S [1 ]
Kakuchi, M [1 ]
Masaki, A [1 ]
Saito, T [1 ]
机构：
[1] Univ Fukui, Res Ctr Dev Far Infrared Reg, Fukui 9108507, Japan
来源：
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2003年 / 72卷 / 07期
关键词：
CsPbBr3; photoluminescence; exciton; microcrystal; film;
D O I：
10.1143/JPSJ.72.1789
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The luminescence properties of CsPbBr3 films prepared via the amorphous phase by crystallization are dominated by free-exciton emission, and only a weak trace of emission due to trapped excitons was observed, in contrast to the case of bulk CsPbBr3 crystals. In particular, the films in the microcrystalline state show by more than an order of magnitude stronger free-exciton emission than in the polycrystalline state. The enhanced free-exciton emission is suggestive of excitonic superradiance.
引用
收藏
页码：1789 / 1791
页数：3
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