Structural Evolution and Photoluminescence Properties of Two‐dimensional Lead Halide Perovskites

Herein, by using different size of organic molecules as cation templates, we prepared four new two‐dimensional (2D) lead halide perovskites, [PrPipz]PbBr4 (1), [DMEDA]PbBr4 (2), [TMEDA]0.5[DMA]PbCl4 (3) and [TMA]4Pb3Cl10 (4). Under the distinct structural directing effects of organic cations, compou...

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Published in:Zeitschrift für anorganische und allgemeine Chemie (1950) 2022-04, Vol.648 (8), p.n/a
Main Authors: Ma, Yue‐Yu, Pan, Hong‐Mei, Li, Dong‐Yang, Wu, Shuang, Jing, Zhihong
Format: Article
Language:English
Subjects:
2D perovskite
Broadband
Cations
Crystal structure
layered compounds
Lead chlorides
Lead compounds
luminescence
Metal halides
Organic chemistry
Pb-based perovskites
Perovskites
Photoluminescence
Room temperature
structural design
Ultraviolet radiation
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Summary:Herein, by using different size of organic molecules as cation templates, we prepared four new two‐dimensional (2D) lead halide perovskites, [PrPipz]PbBr4 (1), [DMEDA]PbBr4 (2), [TMEDA]0.5[DMA]PbCl4 (3) and [TMA]4Pb3Cl10 (4). Under the distinct structural directing effects of organic cations, compounds 1–4 present four different types of 2D inorganic layers. Remarkably, compounds 1, 3 and 4 exhibit broadband blue emissions, while compound 2 exhibits broadband yellow emission upon the excitation of UV light at room temperature. This work paves a way to modulate the crystal structure and photoluminescent property of low‐dimensional halide perovskite via structural modulation strategy from the molecular level.
ISSN:0044-2313
1521-3749
DOI:10.1002/zaac.202100334