Issue 47, 2020

Tetrameric cluster assembled one-dimensional hybrid lead halides with broadband light emission

Abstract

It remains significant to explore new types of hybrid lead halides to realize the diversifications of structural and luminescence properties due to the excellent optoelectronic performances of perovskites. Herein, by choosing various organic molecules as cationic templates, we constructed a series of new one-dimensional (1D) lead halide perovskites, namely, [DMEDA]Pb2Br6·H2O (1), [ATMPD]Pb2Br6·H2O (2) and [TMPrDA]2Pb3X10 (3: X = Br; 4: X = Cl). The crystal structures of compounds 1–4 contain 1D [Pb2Br6]2− and [Pb3X10]4− chains based on [Pb4X16] tetramer clusters as basic building units, respectively. Remarkably, compound 2 displays broadband yellow light emissions spanning the entire visible spectral range and centered at 534 nm, which can be ascribed to self-trapped excitons based on systematic characterization including time-resolved PL emission and theoretical studies. This work provides a series of new low-dimensional hybrid lead halides as prototypes to enrich the halide chemistry including crystal engineering and optoelectronic performance.

Graphical abstract: Tetrameric cluster assembled one-dimensional hybrid lead halides with broadband light emission

Supplementary files

Article information

Article type
Paper
Submitted
17 Aug 2020
Accepted
01 Oct 2020
First published
02 Oct 2020

CrystEngComm, 2020,22, 8208-8213

Tetrameric cluster assembled one-dimensional hybrid lead halides with broadband light emission

W. Zhang, J. Zhao, X. Sun, Y. Ma, H. Pan, Z. Jing, X. Lei and Q. Yao, CrystEngComm, 2020, 22, 8208 DOI: 10.1039/D0CE01202E

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