Pressure-Induced Remarkable Enhancement of Self-Trapped Exciton Emission in One-Dimensional CsCu2I3 with Tetrahedral Units

Li，Qian1; Chen，Zhongwei1; Yang，Bo2; Tan，Li1; Xu，Bin1; Han，Jiang1; Zhao，Yusheng1; Tang，Jiang2; Quan，Zewei1

2020-01-29

10.1021/jacs.9b13419

Journal of the American Chemical Society   影响因子和分区

0002-7863

1520-5126

Self-trapped exciton (STE) emissions derived from inorganic octahedral units make metal halide perovskites promising photoluminescence materials for light-emitting applications. However, there is still little understanding of the intrinsic STE emissions in metal halide perovskites or derivatives with nonoctahedral units. In this work, via high pressure compression, remarkable STE emission enhancement is, for the first time, realized in one-dimensional CsCuI crystals with {CuCl} tetrahedral units. The intertetrahedral distortion is believed to induce the slight emission enhancement of the ambient phase under initial compression. Notably, the obvious structural distortions of both inter- and intratetrahedra are responsible for the significant emission enhancement of the high pressure phase. This work not only sheds light on the structure-optical property relationships of tetrahedron-based halide complexes, but also may provide guidance for the design and fabrication of highly luminescent metal halides.

SCI ; EI

英语

NI期刊

第一 ; 通讯

U.S. Department of Energy[DE-FG02-94ER14466] ; Office of Science[] ; Guangdong Science and Technology Department[2016ZT06C279] ; U.S. Department of Energy[] ; [KQTD2016053019134356] ; [2017YFE0132300] ; National Science Foundation[EAR-1634415] ; Argonne National Laboratory[] ; National Natural Science Foundation of China[51772142]

Chemistry

Chemistry, Multidisciplinary

WOS:000510531900024

American Chemical Society

20200508105238

Cesium compounds ; Chlorine compounds ; Copper compounds ; Excitons ; Light emission ; Metal halide lamps ; Metal halides ; Optical properties ; Perovskite

Minerals:482.2 ; Electric Lamps:707.2 ; Light/Optics:741.1 ; Chemical Products Generally:804

2-s2.0-85078544060

Scopus

1.Department of Chemistry,Academy for Advanced Interdisciplinary Studies,Shenzhen Engineering Research Center for Frontier Materials Synthesis at High Pressures,Southern University of Science and Technology (SUSTech),Shenzhen,518055,China
2.Wuhan National Laboratory for Optoelectronics (WNLO) and School of Optical and Electronic Information,Huazhong University of Science and Technology (HUST),Wuhan,430074,China

Li，Qian,Chen，Zhongwei,Yang，Bo,et al. Pressure-Induced Remarkable Enhancement of Self-Trapped Exciton Emission in One-Dimensional CsCu2I3 with Tetrahedral Units[J]. Journal of the American Chemical Society,2020,142(4):1786-1791.

Li，Qian.,Chen，Zhongwei.,Yang，Bo.,Tan，Li.,Xu，Bin.,...&Quan，Zewei.(2020).Pressure-Induced Remarkable Enhancement of Self-Trapped Exciton Emission in One-Dimensional CsCu2I3 with Tetrahedral Units.Journal of the American Chemical Society,142(4),1786-1791.

Li，Qian,et al."Pressure-Induced Remarkable Enhancement of Self-Trapped Exciton Emission in One-Dimensional CsCu2I3 with Tetrahedral Units".Journal of the American Chemical Society 142.4(2020):1786-1791.