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Bulk Assembly of Corrugated 1D Metal Halides with Broadband Yellow Emission
Author(s) -
Lin Haoran,
Zhou Chenkun,
Neu Jennifer,
Zhou Yan,
Han Dan,
Chen Shiyou,
Worku Michael,
Chaaban Maya,
Lee Sujin,
Berkwits Ella,
Siegrist Theo,
Du MaoHua,
Ma Biwu
Publication year - 2019
Publication title -
advanced optical materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.89
H-Index - 91
ISSN - 2195-1071
DOI - 10.1002/adom.201801474
Subject(s) - halide , materials science , metal halides , exciton , metal , octahedron , photoluminescence , binding energy , ultraviolet , excitation , crystallography , chemical physics , photochemistry , optoelectronics , inorganic chemistry , atomic physics , condensed matter physics , crystal structure , chemistry , physics , quantum mechanics , metallurgy
The family of molecular level low‐dimensional organic metal halide hybrids has expanded significantly over the last few years. Here a new type of 1D metal halide structure is reported, in which metal halide octahedra form a corrugated double‐chain structure via nonplanar edge‐sharing. This material with a chemical formula of C 5 H 16 N 2 Pb 2 Br 6 exhibits a broadband yellow emission under ultraviolet light excitation with a photoluminescence quantum efficiency of around 10%. The light‐yellow emission is considered to be attributed to self‐trapping excitons. Theoretical calculations show that the unique alignment of the octahedra leads to small band dispersion and large exciton binding energy. Together with previously reported 1D metal halide wires and tubes, this new bulk assembly of 1D metal halides suggests the potential to develop a library of bulk assemblies of metal halides with controlled structures and compositions.