Issue 37, 2022

Alloying Sb into all inorganic lead-free CsBi3I10 for improving the crystal growth and photovoltaic performance

Abstract

The all-inorganic lead-free perovskite CsBi3I10 has recently emerged as a promising light absorber. However, the poor morphology of CsBi3I10 film remains a critical issue for fabricating high-performance solar cells. In this work, we report an ion substitution strategy by alloying Sb into CsBi3I10, resulting in dramatically improved grain crystallinity and markedly reduced bandgaps for better light utilization. The Sb-substituted CsBi3I10 film composed of highly-crystalline large grains can form a bulk-heterojunction structure with the electron acceptor PCBM to facilitate the exciton separation. With PTAA as the hole transport layer, the solar cell assembled using Cs(Bi0.7Sb0.3)3I10 can afford a champion power conversion efficiency of 1.54% with a high Voc of 0.81 V.

Graphical abstract: Alloying Sb into all inorganic lead-free CsBi3I10 for improving the crystal growth and photovoltaic performance

Supplementary files

Article information

Article type
Communication
Submitted
21 Mär 2022
Accepted
24 Mai 2022
First published
27 Mai 2022

J. Mater. Chem. A, 2022,10, 19618-19625

Alloying Sb into all inorganic lead-free CsBi3I10 for improving the crystal growth and photovoltaic performance

J. Kang, S. Chen, M. Hao, J. Liu, M. Al-Mamun, P. Liu, Y. Wang, H. Yin and H. Zhao, J. Mater. Chem. A, 2022, 10, 19618 DOI: 10.1039/D2TA02245A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements