Issue 18, 2019

Efficient and stable all-inorganic perovskite solar cells based on nonstoichiometric CsxPbI2Brx (x > 1) alloys

Abstract

Here we report a systematic study of all-inorganic perovskite-inspired systems based on CsxPbI2Brx alloys with x ranging from 0.95 to 4. The identified optimal non-stoichiometric composition Cs1.2PbI2Br1.2 delivered the best optoelectronic, structural and photovoltaic characteristics in combination with the improved stability. The elucidated remarkable effect of the Cs4PbI2Br4 impurity phase, serving as a reservoir of CsBr, on the photothermal stability and photovoltaic performance of CsPbI2Br perovskite films offers a new paradigm in the development of more efficient and stable all-inorganic perovskite solar cells.

Graphical abstract: Efficient and stable all-inorganic perovskite solar cells based on nonstoichiometric CsxPbI2Brx (x > 1) alloys

Supplementary files

Article information

Article type
Paper
Submitted
05 ספט 2018
Accepted
06 מרץ 2019
First published
20 מרץ 2019

J. Mater. Chem. C, 2019,7, 5314-5323

Efficient and stable all-inorganic perovskite solar cells based on nonstoichiometric CsxPbI2Brx (x > 1) alloys

L. A. Frolova, Q. Chang, S. Yu. Luchkin, D. Zhao, A. F. Akbulatov, N. N. Dremova, A. V. Ivanov, E. E. M. Chia, K. J. Stevenson and P. A. Troshin, J. Mater. Chem. C, 2019, 7, 5314 DOI: 10.1039/C8TC04488K

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