Reprinted with permission from Small 2021, 17, 2006279. Copyright 2020 Wiley-VCH GmbH.

December 29, 2020

Small 2021, 17, 2006279

DOI: 10.1002/smll.202006279

Cs2SnI6 has been demonstrated to be a good material for perovskite-based solar cells due to its excellent environmental stability and high light absorb coefficient. However, its performance is far behind the expectation as a result of the challenge to synthesize high-quality thin films. A research group from Rensselaer Polytechnic Institute and their collaborators have developed a new simple method to synthesize single-crystalline Cs2SnI6 perovskite at the liquid/liquid interface. The growth process is characterized by in situ GIXD and optical microscopy measurements.

Weiguang Zhu 1, Junhua Shen 2 , Mingxin Li 1, Kun Yang 2, Wei Bu 3, Yi-Yang Sun 4, Jian Shi 2 and Jie Lian 1,* 

1 Department of Mechanical, Aerospace and Nuclear Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180, USA

2 Department of Materials Science and Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180, USA

3 Center for Advanced Radiation Sources, University of Chicago, Chicago, IL 60637, USA

4 State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201899, China