Issue 3, 2019

All-inorganic lead-free perovskites for optoelectronic applications

Abstract

Organic and inorganic hybrid lead halide perovskites have successfully emerged as revolutionary optoelectronic semiconductors for use in various applications. The long-term stability and lead toxicity of hybrid lead halide perovskites have attracted increased attention; therefore, all-inorganic lead-free perovskites have become an alternative perovskite for use in optoelectronic applications. Among them, all-inorganic CsSnI3 has also been developed. The main issue limiting the optoelectronic performance and stability of Sn-based perovskites is the low chemical stability of Sn2+, which is very easy to be oxidized to Sn4+ under air conditions. Several approaches have been adopted to prevent the oxidation of Sn, thereby improving its performance. However, its chemical stability is still difficult to manage. Other than Sn, other transition metals such as Ge, Bi, and Cu have also been used to substitute Pb and form novel lead-free perovskites. Although such non-Sn lead-free perovskites exhibit much better stability, their photovoltaic performances are lower as compared to those of Pb- or Sn-based perovskites. However, these novel all-inorganic lead-free perovskites exhibit potential in photoluminescence and other optoelectronic applications. Overall, we have reviewed the recent progresses and outlooks regarding the prospects and challenges faced by all-inorganic lead-free perovskites.

Graphical abstract: All-inorganic lead-free perovskites for optoelectronic applications

Article information

Article type
Review Article
Submitted
28 十一月 2018
Accepted
22 一月 2019
First published
28 一月 2019

Mater. Chem. Front., 2019,3, 365-375

All-inorganic lead-free perovskites for optoelectronic applications

X. Wang, T. Zhang, Y. Lou and Y. Zhao, Mater. Chem. Front., 2019, 3, 365 DOI: 10.1039/C8QM00611C

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