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Enhancement of zinc interstitials in ZnO nanotubes grown on glass substrate by the hydrothermal method
Linköping University, Department of Science and Technology, Physics and Electronics. Linköping University, The Institute of Technology.
Linköping University, Department of Science and Technology, Physics and Electronics. Linköping University, The Institute of Technology.
Linköping University, Department of Science and Technology, Physics and Electronics. Linköping University, The Institute of Technology.
Linköping University, Department of Science and Technology, Physics and Electronics. Linköping University, The Institute of Technology.
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2012 (English)In: Applied Physics A: Materials Science & Processing, ISSN 0947-8396, E-ISSN 1432-0630, Vol. 106, no 1, 151-156 p.Article in journal (Refereed) Published
Abstract [en]

In this study, high density well aligned ZnO nanotubes were grown on glass via a two-step growth-then-etching by simple and template-free hydrothermal method. We used etching procedure to introduce additional zinc interstitial defects in the ZnO nanotubes. The optical properties of the ZnO nanotubes have been investigated by depth-resolved cathodluminescence spectroscopy (DRCLS) which provides information about the physical origin and growth dependence of optically active defects together with their spatial distribution. The DRCLS study gives clear evidence about the enhancement of zinc interstitial defects which are responsible for the violet and decrease of the DL emission in ZnO nanotubes when compared to the as grown ZnO nanorods. We observed a variation in the zinc interstitials along the nanotube depth.

Place, publisher, year, edition, pages
Springer Verlag (Germany) , 2012. Vol. 106, no 1, 151-156 p.
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Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-74648DOI: 10.1007/s00339-011-6658-8ISI: 000298644100022OAI: oai:DiVA.org:liu-74648DiVA: diva2:489470
Available from: 2012-02-03 Created: 2012-02-03 Last updated: 2017-08-30

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Soomro, Muhammad YousufBano, NargisNur, OmerWillander, Magnus

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