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


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