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Статья
2019

Preparation and Photoelectrochemical Performances of CuSCN Thin Films Influenced by Electrodeposition Potential


Zhen WangZhen Wang, Da ChenDa Chen, Fang WangFang Wang, Laishun QinLaishun Qin, Liqun BaiLiqun Bai, Xingguo SunXingguo Sun, Yuexiang HuangYuexiang Huang
Российский электрохимический журнал
https://doi.org/10.1134/S1023193519050148
Abstract / Full Text

In this work, p-type CuSCN nanorod thin films were successfully prepared on the fluorine-doped tin oxide (FTO) conductive substrate by a simple electrochemical deposition at different deposition potentials (i.e., −0.1, −0.2, −0.3, −0.4 V), and the influence of deposition potential on the microstructural and photoelectrochemical properties of the prepared CuSCN thin films was then explored. The prepared CuSCN films were nanorod arrays with a rhombohedral β-CuSCN structure, and the better CuSCN crystal structure was achieved when deposited at −0.4 V. The p-type characteristic of the electrodeposited CuSCN thin films were verified by Mott–Schottky measurements. The CuSCN nanorods thin films deposited at −0.2, −0.3, and −0.4 V produced ten times higher photocurrent intensities than the CuSCN thin film deposited at −0.1 V, and the CuSCN thin film deposited at −0.4 V exhibited the best photoelectrochemical performance. The enhanced photoelectrochemical performance of the CuSCN thin film deposited at −0.4 V could be attributed to the better crystal structure, the more charge carrier concentration as well as the more efficient charge separation and migration. This work offers a facile approach to prepare the p-type CuSCN nanorod thin films through electrochemical deposition, and regulate their photoelectrochemical performance by controlling the deposition potential.

Author information
  • College of Materials Science and Engineering, China Jiliang University, Hangzhou, Zhejiang, 310018, P.R. ChinaZhen Wang, Da Chen, Fang Wang, Laishun Qin, Xingguo Sun & Yuexiang Huang
  • Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass, Zhejiang A & F University, Lin’an, Zhejiang Province, 311300, ChinaLiqun Bai
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