Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10620779 | Acta Materialia | 2009 | 8 Pages |
Abstract
High-density ZnO nanowire arrays with low defect concentrations were directly grown on transparent conducting oxide glass substrates under catalyst-free and low temperature conditions by chemical vapor deposition (CVD). A possible growth mechanism of the nanowires is studied. The experiments indicate that correct levels of supersaturation and evaporation temperature are beneficial to the growth of ZnO nanowires. Photoluminescence exhibits a weak ultraviolet emission at 380Â nm and a strong green emission at 495Â nm. While using a double-tube growth system, the visible light emission diminishes and the 380Â nm emission is the only emission, suggesting that ZnO nanowires with few defects can be prepared using the present CVD technique at low temperature.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Jing Hui Zeng, Yong Lin Yu, Ye Feng Wang, Tian Jun Lou,