Synthesis of a cuprite thin film by oxidation of a Cu metal precursor utilizing ultrasonically generated water vapor

THIN SOLID FILMS

卷:556

Article

Myo Than Htay¹  Okamura, Masahiko¹  Yoshizawa, Ryo¹  Hashimoto, Yoshio¹  Ito, Kentaro¹ 

[1] Shinshu Univ, Fac Engn, Dept Elect & Elect Engn, Nagano 3808553, Japan

关键词: Cu2O;    Cuprous oxide;    Cuprite;    Ultrasonic spray pyrolysis;    Water decomposition;    Oxidation;   

DOI  :  10.1016/j.tsf.2014.01.077

来源: Elsevier

【 摘 要 】

A Cu2O thin film of cuprite crystal structure was fabricated via a decomposition reaction of water vapor generated by ultrasonic vibration. The thin film, which was grown on a soda-lime glass substrate at 530 degrees C, exhibited a prominent (111) preferred orientation with an optical bandgap of about 2.1 eV and resistivity of 2.81 x 10(4) Omega cm. Generation of H-2 gas during the reaction process contributed to suppressing the growth of impurity tenorite phase. In a conventional process of thermal oxidation, the formation of the cuprite phase was always accompanied by that of the tenorite phase due to an excess oxygen exposure near the surface of the films. (C) 2014 Elsevier B.V. All rights reserved.

【 授权许可】

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