標題: | Luminescent and structural characteristics of ZnO nanorods fabricated by postannealing |
作者: | Lin, CC Liao, HC Chen, SY Cheng, SY 材料科學與工程學系 Department of Materials Science and Engineering |
公開日期: | 1-一月-2006 |
摘要: | Well-aligned ZnO nanorods grown on silicon substrates buffered with ZnO film were postannealed at 200-1000 degrees C in various atmospheres. The optical properties of ZnO nanorods were much improved by annealing at high temperatures in both atmospheres of N-2 and O-2. This improvement was ascribed to the decrease in structure defects as compared to as-grown ZnO nanorods. However, for the ZnO nanorods annealed in H-2/N-2, a stronger UV emission occurs at 600 degrees C; above that the UV emission rapidly disappeared, which was attributed to the collapse of the ZnO nanorods due to H-2 etching during a higher-temperature annealing in H-2/N-2. The crystallinity and optical properties of the ZnO nanorods can be controlled by postannealing treatment. (c) 2006 American Vacuum Society. |
URI: | http://dx.doi.org/10.1116/1.2163893 http://hdl.handle.net/11536/12932 |
ISSN: | 1071-1023 |
DOI: | 10.1116/1.2163893 |
期刊: | JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B |
Volume: | 24 |
Issue: | 1 |
起始頁: | 304 |
結束頁: | 307 |
顯示於類別: | 會議論文 |