Properties of nanocrystalline zinc oxide thin films prepared by thermal decomposition of electrodeposited zinc peroxide

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• 作者：Xiaofei Han ; Run Liu ; Weixiang Chen ; Zhude Xu
• 关键词：Electrodeposition ; Zinc peroxide ; Zinc oxide ; II– ; VI semiconductors ; Optical properties
• 刊名：Thin Solid Films
• 出版年：2008
• 期刊代码：78_00406090
• 类别：ph
• 出版时间：30 April 2008
• 卷：516
• 期：12
• 页码：4025-4029
• 文件大小：719 K

摘要

Zinc peroxide thin films were electrodeposited from aqueous solution at room temperature using H₂O₂ as the oxidation agent. Nanocrystalline zinc oxide thin films were then obtained from thermal decomposition of zinc peroxide thin films. The grain sizes of ZnO through thermal decomposition of ZnO₂ at 200 °C, 300 °C and 400 °C were estimated from the peak width of ZnO(110) obtained from X-ray diffraction and were 6.3 nm, 9.1 nm and 12.9 nm, respectively. The optical properties of zinc oxide thin films have been studied. The photoluminescence results indicate that ZnO thin films have low Stokes blue shift (about 110 meV) and low oxygen vacancies.