Issue 11, 2018

Design of a novel and highly stable lead-free Cs2NaBiI6 double perovskite for photovoltaic application

Abstract

In recent years, lead-based perovskites have become the most promising photovoltaic materials, showing excellent photoelectronic performance. However, the lead-based perovskites also exhibit instability and significant environmental impact. In this study, we have first reported the synthesis and characterization of a new lead-free double perovskite material, Cs2NaBiI6 (CNBI), and determined its crystal structure and optical properties by various testing methods. CNBI has a low band gap of 1.66 eV and exhibits high stability against moisture and oxygen in ambient air. We have also inspected the crystal growth process of CNBI and elucidated its crystal growth mechanism. Solar cell devices fabricated with CNBI as the absorber layer have shown great stability and reproducibility.

Graphical abstract: Design of a novel and highly stable lead-free Cs2NaBiI6 double perovskite for photovoltaic application

Supplementary files

Article information

Article type
Paper
Submitted
01 apr 2018
Accepted
24 mei 2018
First published
24 mei 2018

Sustainable Energy Fuels, 2018,2, 2419-2428

Design of a novel and highly stable lead-free Cs2NaBiI6 double perovskite for photovoltaic application

C. Zhang, L. Gao, S. Teo, Z. Guo, Z. Xu, S. Zhao and T. Ma, Sustainable Energy Fuels, 2018, 2, 2419 DOI: 10.1039/C8SE00154E

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