Ultrafast self-trapping of photoexcited carriers sets the upper limit on antimony trisulfide photovoltaic devices

Zhaoliang Yang; Xiaomin Wang; Yuzhong Chen; Zhenfa Zheng; Zeng Chen; Wenqi Xu; Weimin Liu; Yang (Michael) Yang; Jin Zhao; Tao Chen; Haiming Zhu

doi:10.1038/s41467-019-12445-6

Nature Communications (Oct 2019)

Ultrafast self-trapping of photoexcited carriers sets the upper limit on antimony trisulfide photovoltaic devices

Zhaoliang Yang,
Xiaomin Wang,
Yuzhong Chen,
Zhenfa Zheng,
Zeng Chen,
Wenqi Xu,
Weimin Liu,
Yang (Michael) Yang,
Jin Zhao,
Tao Chen,
Haiming Zhu

Affiliations

Zhaoliang Yang: Centre for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University
Xiaomin Wang: CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China
Yuzhong Chen: Centre for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University
Zhenfa Zheng: Department of Physics, University of Science and Technology of China
Zeng Chen: Centre for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University
Wenqi Xu: School of Physical Science and Technology, ShanghaiTech University
Weimin Liu: School of Physical Science and Technology, ShanghaiTech University
Yang (Michael) Yang: State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University
Jin Zhao: Department of Physics, University of Science and Technology of China
Tao Chen: CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China
Haiming Zhu: Centre for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University

DOI: https://doi.org/10.1038/s41467-019-12445-6
Journal volume & issue: Vol. 10, no. 1
pp. 1 – 8

Abstract

Read online

Antimony trisulfide has a proper bandgap of 1.7 eV for making solar cells but the devices suffer from severe voltage loss. Here Yang et al. propose that the photoexcited carriers are self-trapped by lattice deformation, which places a thermodynamic limit of only 0.8 V for the open circuit voltage.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

About the journal