Journal
MATERIALS LETTERS
Volume 153, Issue -, Pages 128-131Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2015.04.045
Keywords
CuO; Ultrathin nanowire; Oxidation; Crystal structure; Luminescence
Funding
- National Natural Science Foundation of China, China [51471132]
- China Postdoctoral Science Foundation, China Funded Project [2013M532071]
- Pivot Innovation Team of Shaanxi Electric Materials and Infiltration Technique of China [2012KCT-25]
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Copper powders were thermally treated in the air at a wide temperature range of 200-700 degrees C. It was found that thin CuO nanowires were grown at 300 degrees C and thick CuO nanowires were grown at 500 degrees C. The diameters of the thin CuO nanowires were distributed in the range of 5-10 nm, and the growth directions along [(1) over bar 11] and [110] were observed. In addition, the thermally treated copper powders with ultrathin CuO nanowires showed a broad violet emission band peaking at 402 nm. (C) 2015 Elsevier B.V. All rights reserved.
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