Synthesis and optical characterization of single-crystalline AlN nanosheets

被引：84

作者：

Zhang, Xitian ^{[1
]}

Liu, Zhuang ^{[1
]}

Hark, Suikong ^{[1
]}

机构：

[1] Chinese Univ Hong Kong, Dept Phys, Shatin, Hong Kong, Peoples R China

来源：

SOLID STATE COMMUNICATIONS | 2007年 / 143卷 / 6-7期

关键词：

AlN nanosheets; Raman scattering; photoluminescence;

D O I：

10.1016/j.ssc.2007.05.039

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Uniform and smooth AlN nanosheets were fabricated on Si substrates by a vapour-phase transport method, using At powder and ammonia as the source materials. Their morphology and structure were examined by scanning and transmission electron microscopy, and X-ray diffraction. They have a perfect rectangular shape. The growth is favoured along the < 1 (1) over bar 00 > and < 0001 > crystallographic directions within the (1120) plane. Their growth mechanism is discussed on the basis of data gathered. The linewidth of E-2 (high) longitudinal optical phonon mode is about 7 cm(-1) indicating their high quality. Their photoluminescence property is also investigated. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：317 / 320

页数：4

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