Luminescent and structural characteristics of ZnO nanorods fabricated by postannealing

Chin Ching Lin, Hung Chou Liao, San-Yuan Chen*, Syh Yuh Cheng

*此作品的通信作者

研究成果: Article同行評審

2 引文 斯高帕斯(Scopus)

摘要

Well-aligned ZnO nanorods grown on silicon substrates buffered with ZnO film were postannealed at 200-1000 °C in various atmospheres. The optical properties of ZnO nanorods were much improved by annealing at high temperatures in both atmospheres of N2 and O2. This improvement was ascribed to the decrease in structure defects as compared to as-grown ZnO nanorods. However, for the ZnO nanorods annealed in H2 N2, a stronger UV emission occurs at 600 °C; above that the UV emission rapidly disappeared, which was attributed to the collapse of the ZnO nanorods due to H2 etching during a higher-temperature annealing in H2 N2. The crystallinity and optical properties of the ZnO nanorods can be controlled by postannealing treatment.

原文English
頁(從 - 到)304-307
頁數4
期刊Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures
24
發行號1
DOIs
出版狀態Published - 1 1月 2006

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