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Article: Time-resolved photoluminescence study of the stimulated emission in ZnO nanoneedles

TitleTime-resolved photoluminescence study of the stimulated emission in ZnO nanoneedles
Authors
KeywordsPhysics Engineering
Issue Date2005
PublisherAmerican Institute of Physics. The Journal's web site is located at http://apl.aip.org/
Citation
Applied Physics Letters, 2005, v. 87 n. 9, article no. 093108 How to Cite?
AbstractZnO nanoneedles were fabricated by thermal evaporation of Zn nanoparticles at 800 °C and atmospheric pressure. The samples showed strong ultraviolet photoluminescence and weak orange defect luminescence. Time-resolved photoluminescence (TRPL) was measured using the Kerr-gated fluorescence technique in order to probe the ultrafast carrier dynamics in exciton-exciton scattering and electron hole plasma (EHP) regimes. In both regimes, the decay time of the photoluminescence is very fast (∼1 ps). Even though no structure is detected in the time-integrated spectra of the EHP emission, the TRPL reveals the coexistence of the excitons and free carriers. Possible reasons for the observed phenomena are discussed. © 2005 American Institute of Physics.
Persistent Identifierhttp://hdl.handle.net/10722/44591
ISSN
2015 Impact Factor: 3.142
2015 SCImago Journal Rankings: 1.105
ISI Accession Number ID
References

 

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dc.contributor.authorKwok, WMen_HK
dc.contributor.authorDjurišić, ABen_HK
dc.contributor.authorLeung, YHen_HK
dc.contributor.authorChan, WKen_HK
dc.contributor.authorPhillips, DLen_HK
dc.date.accessioned2007-10-30T06:05:15Z-
dc.date.available2007-10-30T06:05:15Z-
dc.date.issued2005en_HK
dc.identifier.citationApplied Physics Letters, 2005, v. 87 n. 9, article no. 093108en_HK
dc.identifier.issn0003-6951en_HK
dc.identifier.urihttp://hdl.handle.net/10722/44591-
dc.description.abstractZnO nanoneedles were fabricated by thermal evaporation of Zn nanoparticles at 800 °C and atmospheric pressure. The samples showed strong ultraviolet photoluminescence and weak orange defect luminescence. Time-resolved photoluminescence (TRPL) was measured using the Kerr-gated fluorescence technique in order to probe the ultrafast carrier dynamics in exciton-exciton scattering and electron hole plasma (EHP) regimes. In both regimes, the decay time of the photoluminescence is very fast (∼1 ps). Even though no structure is detected in the time-integrated spectra of the EHP emission, the TRPL reveals the coexistence of the excitons and free carriers. Possible reasons for the observed phenomena are discussed. © 2005 American Institute of Physics.en_HK
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dc.languageengen_HK
dc.publisherAmerican Institute of Physics. The Journal's web site is located at http://apl.aip.org/en_HK
dc.relation.ispartofApplied Physics Lettersen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectPhysics Engineeringen_HK
dc.titleTime-resolved photoluminescence study of the stimulated emission in ZnO nanoneedlesen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0003-6951&volume=87&issue=9&spage=093108:1&epage=3&date=2005&atitle=Time-resolved+photoluminescence+study+of+the+stimulated+emission+in+zno+nanoneedlesen_HK
dc.identifier.emailDjurišić, AB: dalek@hku.hken_HK
dc.identifier.emailChan, WK: waichan@hku.hken_HK
dc.identifier.emailPhillips, DL: phillips@hku.hken_HK
dc.identifier.authorityDjurišić, AB=rp00690en_HK
dc.identifier.authorityChan, WK=rp00667en_HK
dc.identifier.authorityPhillips, DL=rp00770en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1063/1.2035871en_HK
dc.identifier.scopuseid_2-s2.0-24644487435en_HK
dc.identifier.hkuros105090-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-24644487435&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume87en_HK
dc.identifier.issue9en_HK
dc.identifier.spagearticle no. 093108-
dc.identifier.epagearticle no. 093108-
dc.identifier.isiWOS:000231503700054-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridKwok, WM=7103129332en_HK
dc.identifier.scopusauthoridDjurišić, AB=7004904830en_HK
dc.identifier.scopusauthoridLeung, YH=7201463866en_HK
dc.identifier.scopusauthoridChan, WK=13310083000en_HK
dc.identifier.scopusauthoridPhillips, DL=7404519365en_HK

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