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Citation: HUA Zhen, JIN Zheng-Guo, WU Wei-Bing, CHENG Zhi-Jie. Preparation of p-CuSCN Thin Film by Electrochemical Deposition in Aqueous Solution[J]. Chinese Journal of Applied Chemistry, ;2005, 22(2): 138-141. shu

Preparation of p-CuSCN Thin Film by Electrochemical Deposition in Aqueous Solution

1.
Key Laboratory of Advanced Ceramics and Machining Technology of Ministry of Education, School of Materials, Tianjin University, Tianjin 300072

Corresponding author: JIN Zheng-Guo,
Received Date: 27 April 2004
Available Online: 29 October 2004
Fund Project: 天津市自然科学基金重点资助项目(F103004) (F103004)

CuSCN thin films were prepared by the electrodeposition method from an EDTA-chelated Cu(Ⅱ) and KSCN aqueous solution. The instability of Cu(SCN)₂ in water and function of EDTA complexant on improving the stability of CuSO₄ and KSCN solution were studied. The results show that Cu(SCN)₂ can transform into CuSCN and (SCN)_x in the absence of EDTA; a stable aqueous electrolyte is obtained in the presence of EDTA. Transparent CuSCN thin film is prepared in an aqueous electrolyte when the molar ratio of Cu²⁺ to EDTA is 1:1 and Cu²⁺ to SCN^- 4:1. The average crystal size of CuSCN thin film is 50 nm, band gap ~3.8 eV and conductivity up to 0.8×10^-3 S/cm.
- p-CuSCN,
- electrochemical deposition,
- EDTA complexant
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