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Mushroom-like ZnO Nanostructures Grown on Tungsten Substrate

Author(s): Xiang Wu, Boxiang Jia, Fengyu Qu, Quanqin Zhao.

Abstract:

In this work, we have developed a facile but efficient method to prepare mushroom-like Zinc oxide (ZnO) nanostructures with a flat cap in the diameter of around 1m, by thermal evaporation of the mixture of ZnS and carbon powder on a tungsten substrate. The mushroom-like nanostructures were characterized by using advanced techniques such as scanning electron microscope (SEM), X ray diffraction (XRD) and Raman spectroscopy. The optical properties of such product were also investigated by photoluminescence spectroscopy, revealing a strong green emission band emerged, which may be attributed to the oxygen vacancies and various surface states. Finally the formation and growth mechanisms for the mushroom-like ZnO nanostructures were proposed and discussed.

Keywords: Nanostructures, optical property, thermal evaporation, ZnO.

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Article Details

VOLUME: 10
ISSUE: 2
Year: 2014
Page: [308 - 311]
Pages: 4
DOI: 10.2174/15734137113096660115
Price: $58