Article: Morphology and optical properties of ZnO nanostructures grown under zinc and oxygen-rich conditions

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TitleMorphology and optical properties of ZnO nanostructures grown under zinc and oxygen-rich conditions
AuthorsHsu, YF1
Djurišić, AB1
Tam, KH1
KeywordsB1. Nanomaterials
B1. Oxides
B2. Semiconducting II-VI materials
Issue Date2007
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jcrysgro
CitationJournal Of Crystal Growth, 2007, v. 304 n. 1, p. 47-52 [How to Cite?]
DOI: http://dx.doi.org/10.1016/j.jcrysgro.2006.12.080
AbstractZinc oxide nanostructures exhibit widely different morphologies and optical properties for different fabrication conditions. We investigated the influence of zinc and oxygen supply on the morphology and optical properties of zinc nanostructures. To minimize the number of parameters affecting the gas-phase supersaturation, vertical growth geometry with substrate placed at a fixed distance above the source was considered. Thus, source and substrate temperatures were kept the same (500 °C), while source-to-substrate distance, oxygen gas flow rate, and the amount of zinc source material were varied to change zinc and oxygen supply, and consequently change the gas-phase supersaturation and the properties of the obtained nanostructures. The morphology and optical properties of the nanostructures were studied using scanning electron microscopy and photoluminescence spectroscopy. Great variety of the morphologies was obtained, including ribbon/comb structures in spite of the low substrate temperature, and evolution of their morphology and optical properties as a function of oxygen-rich or zinc-rich growth conditions was discussed. © 2007 Elsevier B.V. All rights reserved.
ISSN0022-0248
2011 Impact Factor: 1.726
2011 SCImago Journal Rankings: 0.183
DOIhttp://dx.doi.org/10.1016/j.jcrysgro.2006.12.080
ISI Accession Number IDWOS:000247231900009
ReferencesReferences in Scopus
DC Field
Value
dc.contributor.authorHsu, YF
dc.contributor.authorDjurišić, AB
dc.contributor.authorTam, KH
dc.date.accessioned2010-09-06T08:07:32Z
dc.date.available2010-09-06T08:07:32Z
dc.date.issued2007
dc.description.abstractZinc oxide nanostructures exhibit widely different morphologies and optical properties for different fabrication conditions. We investigated the influence of zinc and oxygen supply on the morphology and optical properties of zinc nanostructures. To minimize the number of parameters affecting the gas-phase supersaturation, vertical growth geometry with substrate placed at a fixed distance above the source was considered. Thus, source and substrate temperatures were kept the same (500 °C), while source-to-substrate distance, oxygen gas flow rate, and the amount of zinc source material were varied to change zinc and oxygen supply, and consequently change the gas-phase supersaturation and the properties of the obtained nanostructures. The morphology and optical properties of the nanostructures were studied using scanning electron microscopy and photoluminescence spectroscopy. Great variety of the morphologies was obtained, including ribbon/comb structures in spite of the low substrate temperature, and evolution of their morphology and optical properties as a function of oxygen-rich or zinc-rich growth conditions was discussed. © 2007 Elsevier B.V. All rights reserved.
dc.description.natureLink_to_subscribed_fulltext
dc.identifier.citationJournal Of Crystal Growth, 2007, v. 304 n. 1, p. 47-52 [How to Cite?]
DOI: http://dx.doi.org/10.1016/j.jcrysgro.2006.12.080
dc.identifier.doihttp://dx.doi.org/10.1016/j.jcrysgro.2006.12.080
dc.identifier.epage52
dc.identifier.hkuros126867
dc.identifier.isiWOS:000247231900009
dc.identifier.issn0022-0248
2011 Impact Factor: 1.726
2011 SCImago Journal Rankings: 0.183
dc.identifier.issue1
dc.identifier.openurl
dc.identifier.scopuseid_2-s2.0-34247630074
dc.identifier.spage47
dc.identifier.urihttp://hdl.handle.net/10722/80536
dc.identifier.volume304
dc.languageeng
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jcrysgro
dc.publisher.placeNetherlands
dc.relation.ispartofJournal of Crystal Growth
dc.relation.referencesReferences in Scopus
dc.rightsJournal of Crystal Growth. Copyright © Elsevier BV.
dc.subjectB1. Nanomaterials
dc.subjectB1. Oxides
dc.subjectB2. Semiconducting II-VI materials
dc.titleMorphology and optical properties of ZnO nanostructures grown under zinc and oxygen-rich conditions
dc.typeArticle
Author Affiliations
  1. The University of Hong Kong