Issue 79, 2023

Broadband red emission from one-dimensional hexamethonium lead bromide perovskitoid

Abstract

Broadband emissions from low-dimensional hybrid perovskites have aroused intense interest. However, the achievement of broadband red emission in lead halide perovskites remains challenging. Herein, we report a one-dimensional (1D) hybrid lead bromide perovskitoid, (HM)Pb2Br6 (HM = hexamethonium), featuring a corrugated “3 × 3” [Pb2Br6]2− chain. The unique structure results in intriguingly red emission peaking at 692 nm, with a PLQY of around 6.24%. Our spectroscopic and computational studies reveal that the red emission derives from self-localized Pb23+, Pb3+ and Br2 species confined within the inorganic lead bromide lattice that function as radiative centres. This finding will benefit the design of perovskite systems for efficient red emission.

Graphical abstract: Broadband red emission from one-dimensional hexamethonium lead bromide perovskitoid

Supplementary files

Article information

Article type
Communication
Submitted
21 Jul 2023
Accepted
07 Sep 2023
First published
07 Sep 2023

Chem. Commun., 2023,59, 11795-11798

Broadband red emission from one-dimensional hexamethonium lead bromide perovskitoid

B. He, K. Kuang, B. Xu, J. Tang, S. Cao, Z. Yu, M. Li, Y. He and J. Chen, Chem. Commun., 2023, 59, 11795 DOI: 10.1039/D3CC03477A

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