ZnO nanoneedles grown vertically on Si substrates by non-catalytic vapor-phase epitaxy

被引:558
作者
Park, WI
Yi, GC [1 ]
Kim, MY
Pennycook, SJ
机构
[1] Pohang Univ Sci & Technol, Dept Mat Sci & Engn, Pohang 790784, Kyungbuk, South Korea
[2] Samsung Adv Inst Sci & Technol, Suwon 440600, South Korea
[3] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA
关键词
D O I
10.1002/adma.200290015
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A study was performed on ZnO nanoneedles grown vertically on Si substrates by non-catalytic vapor-phase epitaxy. The surface morphology of as-grown ZnO nanoneedles on Si substrates was investigated using scanning electron microscopy (SEM). It was found that the nanoneedles have high crystallinity and excellent photoluminescence (PL) characteristics. A narrow and strong emission peak was observed at 3.29 eV from the photoluminescence spectra, with a very weak deep-level emission, indicating that the nanoneedles were of high optical quality.
引用
收藏
页码:1841 / 1843
页数:3
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