Growth of platelet-structured CuAlO₂ thin film on CuAl alloy by molten salt electrolysis method

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• 作者：Haiyang Ding ; Shigang Lu ; ^{dinghaiyang@yahoo.cn} ; Juanyu Yang ; Surong Kan ; Xiangjun Zhang
• 关键词：CuAlO2 ; Molten salt electrolysis ; X-ray techniques ; Thin films ; CuAl alloy ; Semiconductors
• 刊名：Materials Letters
• 出版年：2012
• 期刊代码：59_0167577x
• 类别：ms
• 出版时间：1 July, 2012
• 卷：78
• 期：Complete
• 页码：95-98
• 文件大小：708 K

摘要

Herein, we report a novel synthesis procedure of CuAlO₂ thin film by applying molten salt electrolysis method on a CuAl alloy electrode. The CuAlO₂ thin film was directly prepared using CuAl alloy as Cu and Al sources by electrolysis in molten potassium cryolite system (CR = 1.3) at 700 掳C for 10 h with a current density of 0.5 A/cm². The as-prepared CuAlO₂ film was characterized by X-ray diffraction (XRD) and field emission scanning electron microscopy (FESEM). The results indicate that the rhombohedra structural CuAlO₂ film has platelet-like structures with particle size of 2-10 渭m and the membrane thickness is ~ 75 渭m. Moreover, the reaction mechanism for the as-synthesized CuAlO₂ thin film is proposed.