標題: Synthesis and luminescent properties of strong blue light-emitting Al2O3/ZnO nanocables
作者: Hsiao, Chi-Sheng
Kuo, Wan-Lin
Chen, San-Yuan
Shen, Ji-Lin
Lin, Chin-Ching
Cheng, Syh-Yuh
材料科學與工程學系
Department of Materials Science and Engineering
公開日期: 2008
摘要: Photoelectronic characteristics are investigated in well-aligned aluminum-coated ZnO nanorods (Al2O3/ZnO nanocables) grown on Si substrates buffered with ZnO film at a low temperature. Photoluminescence measurement indicates that a strong blue emission peak at similar to 450 nm appears at 400 and 600 degrees C in O-2 and N-2 atmospheres, respectively. A 30x enhancement of the relative intensity ratio of blue emission (I-B) to ultraviolet emission (I-UV) has been observed for the Al2O3/ZnO nanocables. High-resolution transmission electron microscopy and X-ray photoelectron spectroscopy analyses reveal that the origin of the strong blue emission can be attributed to the structure transition and cleavage of the oxygen-hydrogen bond (OH) of the Al2O3/ZnO nanocable, which leads to the formation of singly ionized oxygen vacancies (Al-O-center dot). (C) 2008 The Electrochemical Society.
URI: http://hdl.handle.net/11536/9908
http://dx.doi.org/10.1149/1.2890289
ISSN: 0013-4651
DOI: 10.1149/1.2890289
期刊: JOURNAL OF THE ELECTROCHEMICAL SOCIETY
Volume: 155
Issue: 5
起始頁: K96
結束頁: K99
Appears in Collections:Articles


Files in This Item:

  1. 000254779700079.pdf