期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 61, 期 33, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202208881
关键词
Antimony Chloride Dimers; Near-Infrared Luminescence; Self-Trapped Excitons; Zero-Dimensional Metal Halides
资金
- National Key Research and Development Program of China [2021YFB3500400]
- National Natural Science Foundation of China [51961145101]
- State Key Laboratory of Luminescent Materials and Devices [Skllmd-2022-02]
- Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program [2017BT01X137]
This study presents three novel 0D hybrid antimony chlorides with [Sb2Cl8]2- dimers, which exhibit unusually broad near-infrared (NIR) emission at room temperature. The emissions originate from highly localized excitons, and the [Sb2Cl8]2- dimers in these structures show low symmetry and a large degree of structural freedom.
Zero-dimensional (0D) hybrid metal halides with unique compositional and structural tunability appear as an emerging class of luminescent materials, but near-infrared (NIR) emitters therein are largely unexplored to date. This study presents three novel 0D hybrid antimony chlorines with edge-sharing [Sb2Cl8](2-) dimers, showing unusual room-temperature broadband NIR emission with the maximum emission wavelength up to 1070 nm. Photoluminescence studies and density functional theory calculation demonstrate that the emissions originate from the highly localized excitons, and that the confined [Sb2Cl8](2-) dimers in these structures show low symmetry and a large degree of structural freedom. These hybrid antimony chlorines with [Sb2Cl8](2-) dimers expand the range of new NIR materials in 0D metal halides.
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