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

TitleMorphology and optical properties of ZnO nanostructures grown under zinc and oxygen-rich conditions
Authors
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
Citation
Journal Of Crystal Growth, 2007, v. 304 n. 1, p. 47-52 How to Cite?
Abstract
Zinc 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.
Persistent Identifierhttp://hdl.handle.net/10722/80536
ISSN
2013 Impact Factor: 1.693
2013 SCImago Journal Rankings: 0.962
ISI Accession Number ID
References

 

Author Affiliations
  1. The University of Hong Kong
DC FieldValueLanguage
dc.contributor.authorHsu, YFen_HK
dc.contributor.authorDjurišić, ABen_HK
dc.contributor.authorTam, KHen_HK
dc.date.accessioned2010-09-06T08:07:32Z-
dc.date.available2010-09-06T08:07:32Z-
dc.date.issued2007en_HK
dc.identifier.citationJournal Of Crystal Growth, 2007, v. 304 n. 1, p. 47-52en_HK
dc.identifier.issn0022-0248en_HK
dc.identifier.urihttp://hdl.handle.net/10722/80536-
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.en_HK
dc.languageengen_HK
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jcrysgroen_HK
dc.relation.ispartofJournal of Crystal Growthen_HK
dc.rightsJournal of Crystal Growth. Copyright © Elsevier BV.en_HK
dc.subjectB1. Nanomaterialsen_HK
dc.subjectB1. Oxidesen_HK
dc.subjectB2. Semiconducting II-VI materialsen_HK
dc.titleMorphology and optical properties of ZnO nanostructures grown under zinc and oxygen-rich conditionsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0022-0248&volume=304&spage=47&epage=52&date=2007&atitle=Morphology+and+optical+properties+of+ZnO+nanostructures+grown+under+zinc+and+oxygen-rich+conditionsen_HK
dc.identifier.emailDjurišić, AB: dalek@hku.hken_HK
dc.identifier.authorityDjurišić, AB=rp00690en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.jcrysgro.2006.12.080en_HK
dc.identifier.scopuseid_2-s2.0-34247630074en_HK
dc.identifier.hkuros126867en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-34247630074&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume304en_HK
dc.identifier.issue1en_HK
dc.identifier.spage47en_HK
dc.identifier.epage52en_HK
dc.identifier.isiWOS:000247231900009-
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridHsu, YF=16063930300en_HK
dc.identifier.scopusauthoridDjurišić, AB=7004904830en_HK
dc.identifier.scopusauthoridTam, KH=8533246200en_HK

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