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Article: Exceptionally long exciton photoluminescence lifetime in ZnO tetrapods

TitleExceptionally long exciton photoluminescence lifetime in ZnO tetrapods
Authors
Zhong, YDjurišić, ABHsu, YFWong, KSBrauer, GLing, CCChan, WK
Issue Date2008
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/journals/jpccck/
Citation
Journal Of Physical Chemistry C, 2008, v. 112 n. 42, p. 16286-16295 How to Cite?
DOI: http://dx.doi.org/10.1021/jp804132u
AbstractThe fabrication of ZnO tetrapods of an exceptional optical quality, based on a photoluminescence (PL) lifetime in the range of tens of nanoseconds and the absence of defect emission, is found to be possible in a very narrow temperature range only. A reduction in the PL lifetime and an increase in the defect emission are observed for both higher and lower growth temperatures. The obtained PL lifetime for the optimal growth temperature is an order of magnitude higher than the best results achieved in epilayers and single crystals. Temperature dependence of the PL lifetime of high-quality tetrapod samples indicates that the dominant recombination processes are radiative. © 2008 American Chemical Society.
Persistent Identifierhttp://hdl.handle.net/10722/58326
ISSN
1932-7447
2023 Impact Factor: 3.3
2023 SCImago Journal Rankings: 0.957
ISI Accession Number ID
WOS:000260129400024
Funding AgencyGrant Number
Council of The Hong Kong Special Administrative Region, China7019/04P
604405
Funding Information:

This work was supported by the Research Grants Council of The Hong Kong Special Administrative Region, China (Project Numbers HKU 7019/04P and 604405). Financial support from the Strategic Research Theme, University Development Fund, and Seed Funding Grant and Outstanding Young Researcher Award (administrated by The University of Hong Kong) is also acknowledged. We thank Mr. W. K. Ho for assistance in the CL measurements. The TRPL measurements were done at the Joyce M. Kuck Laser and Photonics Laboratory at the Hong Kong University of Science and Technology.

References
References in Scopus

 

DC FieldValueLanguage
dc.contributor.authorZhong, Yen_HK
dc.contributor.authorDjurišić, ABen_HK
dc.contributor.authorHsu, YFen_HK
dc.contributor.authorWong, KSen_HK
dc.contributor.authorBrauer, Gen_HK
dc.contributor.authorLing, CCen_HK
dc.contributor.authorChan, WKen_HK
dc.date.accessioned2010-05-31T03:28:21Z-
dc.date.available2010-05-31T03:28:21Z-
dc.date.issued2008en_HK
dc.identifier.citationJournal Of Physical Chemistry C, 2008, v. 112 n. 42, p. 16286-16295en_HK
dc.identifier.issn1932-7447en_HK
dc.identifier.urihttp://hdl.handle.net/10722/58326-
dc.description.abstractThe fabrication of ZnO tetrapods of an exceptional optical quality, based on a photoluminescence (PL) lifetime in the range of tens of nanoseconds and the absence of defect emission, is found to be possible in a very narrow temperature range only. A reduction in the PL lifetime and an increase in the defect emission are observed for both higher and lower growth temperatures. The obtained PL lifetime for the optimal growth temperature is an order of magnitude higher than the best results achieved in epilayers and single crystals. Temperature dependence of the PL lifetime of high-quality tetrapod samples indicates that the dominant recombination processes are radiative. © 2008 American Chemical Society.en_HK
dc.languageengen_HK
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/journals/jpccck/en_HK
dc.relation.ispartofJournal of Physical Chemistry Cen_HK
dc.titleExceptionally long exciton photoluminescence lifetime in ZnO tetrapodsen_HK
dc.typeArticleen_HK
dc.identifier.emailDjurišić, AB: dalek@hku.hken_HK
dc.identifier.emailLing, CC: ccling@hkucc.hku.hken_HK
dc.identifier.emailChan, WK: waichan@hku.hken_HK
dc.identifier.authorityDjurišić, AB=rp00690en_HK
dc.identifier.authorityLing, CC=rp00747en_HK
dc.identifier.authorityChan, WK=rp00667en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1021/jp804132uen_HK
dc.identifier.scopuseid_2-s2.0-55649117354en_HK
dc.identifier.hkuros153538en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-55649117354&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume112en_HK
dc.identifier.issue42en_HK
dc.identifier.spage16286en_HK
dc.identifier.epage16295en_HK
dc.identifier.isiWOS:000260129400024-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridZhong, Y=8623189300en_HK
dc.identifier.scopusauthoridDjurišić, AB=7004904830en_HK
dc.identifier.scopusauthoridHsu, YF=16063930300en_HK
dc.identifier.scopusauthoridWong, KS=7404759949en_HK
dc.identifier.scopusauthoridBrauer, G=7101650540en_HK
dc.identifier.scopusauthoridLing, CC=13310239300en_HK
dc.identifier.scopusauthoridChan, WK=13310083000en_HK
dc.identifier.issnl1932-7447-

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