Fabrication of hand-like CuO nanostructured films by free oxidation of Cu2O nanoporous films in alkaline solution. (21st April 2017)

• Record Type: Journal Article
• Authors: Zeng, Xiangming; Ma, Ji; Su, Jiangbin; Zhou, Lei; Zhang, Jianhua; Li, Lunxiong
• Is Part Of: Materials research express. Volume 4:Number 4(2017)
• Publication Date: 2017-04-21
• Subjects: hank-like CuO -- nanostructured films -- free oxidation -- alkaline solution; Materials science -- Research -- Periodicals; Materials science -- Periodicals; 620.11
• DOI: 10.1088/2053-1591/aa6b6c
• Languages: English
• ISSNs: 2053-1591

Abstract

Abstract: In this work, hand-like CuO nanostructured films were successfully fabricated by free oxidation of sputtered Cu2 O nanoporous films in alkaline solution. Scanning electron microscopy, powder x-ray diffraction and ultraviolet–visible spectrum testing were carried out for a detailed characterization. As-fabricated CuO films were composed of a lot of intriguing hand-like CuO which was inclined randomly to the substrate and thus exhibited a highly nanostructured film surface. The corrosion processes were further studied and the possible formation mechanism was consequently revealed. Optical testing results demonstrated that the band gap of the as-fabricated hand-like CuO nanostructured films was estimated to be 2.15 eV, which demonstrates a large blue shift relative to that of bulk CuO.