Synthesis of novel zinc oxide microphone-like microstructures

被引：37

作者：

Khan, Aurangzeb ^{[1
]}

Kordesch, Martin E. ^{[1
]}

机构：

[1] Ohio Univ, Dept Phys & Astron, CMSS Program, Athens, OH 45701 USA

来源：

MATERIALS LETTERS | 2008年 / 62卷 / 02期

关键词：

zinc oxide; microstructures; Raman spectroscopy; cathodoluminescence; thermal evaporation; X-ray diffraction;

D O I：

10.1016/j.matlet.2007.05.005

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Novel microphone-like ZnO microstructures were grown at a very high density via a simple thermal evaporation process using commercially available ZnO powder in ambient air at similar to 1050 +/- 20 degrees C in 1 h. The unique as-grown microstructures were characterized in detail in terms of their structural and optical properties. The structural properties of the synthesized products confirmed that they were wurtzite hexagonal phase for the as-grown products. Raman-scattering spectra exhibited a strong and dominated Raman-active E-2 (high) mode at 441 cm(-1) confirming the wurtzite hexagonal phase for the as-grown microphone-like ZnO morphologies. The cathodoluminescence (CL) spectrum shows a suppressed near band edge emission at similar to 380 nm and strong green emission at similar to 500 nm. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：230 / 234

页数：5

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