Tunable photoluminescence in Sb3+-doped zero-dimensional hybrid metal halides with intrinsic and extrinsic self-trapped excitons

Jun Zhou; Mingze Li; Maxim S. Molokeev; Jiayue Sun; Denghui Xu; Zhiguo Xia

doi:10.1039/D0TC00391C

Tunable photoluminescence in Sb³⁺-doped zero-dimensional hybrid metal halides with intrinsic and extrinsic self-trapped excitons†

Jun Zhou,^a Mingze Li,^b Maxim S. Molokeev,^cde Jiayue Sun,^a Denghui Xu

*^a and Zhiguo Xia

*^bf

Author affiliations

* Corresponding authors

^a School of Science, Beijing Technology and Business University, Beijing 100048, P. R. China
E-mail: xudh@btbu.edu.cn

^b The Beijing Municipal Key Laboratory of New Energy Materials and Technologies, School of Materials Sciences and Engineering, University of Science and Technology Beijing, Beijing 100083, China

^c Laboratory of Crystal Physics, Kirensky Institute of Physics, SB RAS, Krasnoyarsk 660036, Russia

^d Siberian Federal University, Krasnoyarsk, Russia

^e Department of Physics, Far Eastern State Transport University, Khabarovsk, Russia

^f State Key Laboratory of Luminescent Materials and Devices and Institute of Optical Communication Materials, South China University of Technology, Guangzhou, China
E-mail: xiazg@scut.edu.cn

Abstract

Dopants in luminescent metal halides provide an alternative way for photoluminescence tuning towards versatile optical applications. Here we report a trivalent antimony (Sb³⁺)-doped single crystalline 0D metal halide with the composition of (C₉NH₂₀)₉[Pb₃Cl₁₁](ZnCl₄)₂:Sb³⁺. This compound possessed the coexistence of two emission centers including intrinsic and extrinsic self-trapped excitons (STEs), which are ascribed to [Pb₃Cl₁₁]⁵⁻ clusters and triplet STEs formed by the ³P₁–¹S₀ transition of Sb³⁺. By regulating the Sb³⁺ concentration, the emission can be tuned from green to yellow and finally to orange, which would help to develop optically pumped white light-emitting diodes (WLEDs) with different photometric characteristics. Moreover, this dopant-induced extrinsic STE approach presents a new direction towards tuning the luminescence properties of 0D metal halides, and may find application in environmentally-friendly, high-performance metal halide light emitters.

This article is part of the themed collection: Journal of Materials Chemistry C HOT Papers

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Article information

DOI: https://doi.org/10.1039/D0TC00391C
Article type: Paper
Submitted: 21 Jan 2020
Accepted: 03 Mar 2020
First published: 04 Mar 2020

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J. Mater. Chem. C, 2020,8, 5058-5063

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Tunable photoluminescence in Sb³⁺-doped zero-dimensional hybrid metal halides with intrinsic and extrinsic self-trapped excitons

J. Zhou, M. Li, M. S. Molokeev, J. Sun, D. Xu and Z. Xia, J. Mater. Chem. C, 2020, 8, 5058 DOI: 10.1039/D0TC00391C

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Journal of Materials Chemistry C