期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 805, 期 -, 页码 847-851出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2019.07.122
关键词
Perovskite Cs2SnI6; Annealing; Solution processed approach; Photoelectrochemical
资金
- Vietnam Academy of Science and Technology (VAST) [VAST.03.02/18-19]
- Institute of Theoretical and Applied Research (ITAR), Duy Tan University
We report on the synthesis of perovskite Cs2SnI6 films via the solution-processed approach. The cubic Cs2SnI6 phase (Fm3m group) formed at the annealing temperature of 170 degrees C for 8 h in air has uniform morphology. The optical characteristics of the compound depended on the annealing temperature and the compound behaved like a direct band gap semiconductor. Based on these findings, we firstly investigated the potential application of Cs2SnI6 to photoelectrochemical (PEC) water splitting using a 0.3M NaCl electrolyte. The photocurrent density (PCD) and photoconversion efficiency (eta) were 0.92 mA cm(-2) and 0.54% at -0.8 V, respectively. This might be suitable for fabricating the hybrid PEC device. (C) 2019 Elsevier B.V. All rights reserved.
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