Orientation-enhanced growth and optical properties of ZnO nanowires grown on porous silicon substrates

ZnO nanowires have been synthesized on porous silicon substrates with different porosities via the vapour-liquid-solid method. The texture coefficient analysed from the XRD spectra indicates that the nanowires are more highly orientated on the appropriate porosity of porous silicon substrate than on...

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Published inNanotechnology Vol. 16; no. 2; pp. 297 - 301
Main Authors Hsu, Hsu-Cheng, Cheng, Ching-Sheng, Chang, Chia-Chieh, Yang, Song, Chang, Chen-Shiung, Hsieh, Wen-Feng
Format Journal Article
LanguageEnglish
Published England IOP Publishing 01.02.2005
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Summary:ZnO nanowires have been synthesized on porous silicon substrates with different porosities via the vapour-liquid-solid method. The texture coefficient analysed from the XRD spectra indicates that the nanowires are more highly orientated on the appropriate porosity of porous silicon substrate than on the smooth surface of silicon. The Raman spectrum reveals the high quality of the ZnO nanowires. From the temperature-dependent photoluminescence spectra, we deduced the activation energies of free and bound excitons.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:0957-4484
1361-6528
DOI:10.1088/0957-4484/16/2/021