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Article: Controllable synthesis and optical properties of novel ZnO cone arrays via vapor transport at low temperature

TitleControllable synthesis and optical properties of novel ZnO cone arrays via vapor transport at low temperature
Authors
Issue Date2005
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/journal/jpcbfk
Citation
Journal Of Physical Chemistry B, 2005, v. 109 n. 7, p. 2733-2738 How to Cite?
AbstractNovel ZnO cone arrays with controllable morphologies have been synthesized on silicon (100) substrates by thermal evaporation of metal Zn powder at a low temperature of 570°C without a metal catalyst. Clear structure evolutions were observed using scanning electron microscopy: well-aligned ZnO nanocones, double-cones with growing head cones attached by stem cones, and cones with straight hexagonal pillar were obtained as the distance between the source and the substrates was increased. X-ray diffraction shows that all cone arrays grow along the c-axis. Raman and photoluminescence spectra reveal that the optical properties of the buffer layer between the ZnO cone arrays and the silicon substrates are better than those of the ZnO cone arrays due to high concentration of Zn in the heads of the ZnO cone arrays and higher growth temperature of the buffer layer. The growth of ZnO arrays reveals that the cone arrays are synthesized through a self-catalyzed vapor-liquid-solid (VLS) process. © 2005 American Chemical Society.
Persistent Identifierhttp://hdl.handle.net/10722/73595
ISSN
2015 Impact Factor: 3.187
2015 SCImago Journal Rankings: 1.414
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorHan, Xen_HK
dc.contributor.authorWang, Gen_HK
dc.contributor.authorJie, Jen_HK
dc.contributor.authorChoy, WCHen_HK
dc.contributor.authorLuo, Yen_HK
dc.contributor.authorYuk, TIen_HK
dc.contributor.authorHou, JGen_HK
dc.date.accessioned2010-09-06T06:52:53Z-
dc.date.available2010-09-06T06:52:53Z-
dc.date.issued2005en_HK
dc.identifier.citationJournal Of Physical Chemistry B, 2005, v. 109 n. 7, p. 2733-2738en_HK
dc.identifier.issn1520-6106en_HK
dc.identifier.urihttp://hdl.handle.net/10722/73595-
dc.description.abstractNovel ZnO cone arrays with controllable morphologies have been synthesized on silicon (100) substrates by thermal evaporation of metal Zn powder at a low temperature of 570°C without a metal catalyst. Clear structure evolutions were observed using scanning electron microscopy: well-aligned ZnO nanocones, double-cones with growing head cones attached by stem cones, and cones with straight hexagonal pillar were obtained as the distance between the source and the substrates was increased. X-ray diffraction shows that all cone arrays grow along the c-axis. Raman and photoluminescence spectra reveal that the optical properties of the buffer layer between the ZnO cone arrays and the silicon substrates are better than those of the ZnO cone arrays due to high concentration of Zn in the heads of the ZnO cone arrays and higher growth temperature of the buffer layer. The growth of ZnO arrays reveals that the cone arrays are synthesized through a self-catalyzed vapor-liquid-solid (VLS) process. © 2005 American Chemical Society.-
dc.languageengen_HK
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/journal/jpcbfken_HK
dc.relation.ispartofJournal of Physical Chemistry Ben_HK
dc.titleControllable synthesis and optical properties of novel ZnO cone arrays via vapor transport at low temperatureen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1520-6106&volume=109&spage=2733&epage=2738&date=2005&atitle=Controllable+synthesis+and+optical+properties+of+novel+ZnO+cone+arrays+via+vapor+transport+at+low+temperatureen_HK
dc.identifier.emailChoy, WCH:chchoy@eee.hku.hken_HK
dc.identifier.emailYuk, TI:tiyuk@eee.hku.hken_HK
dc.identifier.authorityChoy, WCH=rp00218en_HK
dc.identifier.authorityYuk, TI=rp00210en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1021/jp0475943en_HK
dc.identifier.scopuseid_2-s2.0-14544299199en_HK
dc.identifier.hkuros106392en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-14544299199&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume109en_HK
dc.identifier.issue7en_HK
dc.identifier.spage2733en_HK
dc.identifier.epage2738en_HK
dc.identifier.isiWOS:000227108800039-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridHan, X=7402401342en_HK
dc.identifier.scopusauthoridWang, G=7407621257en_HK
dc.identifier.scopusauthoridJie, J=14822279600en_HK
dc.identifier.scopusauthoridChoy, WCH=7006202371en_HK
dc.identifier.scopusauthoridLuo, Y=36063457600en_HK
dc.identifier.scopusauthoridYuk, TI=6603685705en_HK
dc.identifier.scopusauthoridHou, JG=7401966217en_HK

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