Investigation of the growth and properties of single-crystalline aluminum nitride nanowires

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题名:	Investigation of the growth and properties of single-crystalline aluminum nitride nanowires
作者:	Wu, Hue-Min Peng, Yi-Wen
贡献者:	Dept Optoelect Phys
关键词:	Aluminum nitride nanowires Wurtzite structure Chemical vapor deposition Vapor-liquid-solid growth mechanism
日期:	2015-04
上传时间:	2015-10-30 13:47:28 (UTC+8)
摘要:	The growth of high-quality, large-scale wurtzite-structured aluminum nitride (AIN) nanowires on c-Al2O3 substrates using a catalyst-assisted chemical vapor deposition method was investigated. The morphology and structure of the nanowires were characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, and Raman spectroscopy. These uniform nanowires exhibit a smooth surface and are 50 nm in diameter and 10-30 mu m long; they also exhibit a hexagonal single-crystal lattice with parameters of c=0.497 nm and a=0.272 nm and grow along the [100] direction. A room-temperature near-band edge emission at 6.12 eV was observed in their electron excitation spectra. Our approach provides a simple and efficient method to grow high-quality AIN nanowires, and our results indicate that they are promising materials for use in various applications. (C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
關聯:	CERAMICS INTERNATIONAL 卷: 41 期: 3 頁碼: 4847-4851 子輯: B
显示于类别:	[光電物理系] 期刊論文

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