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Article: Green, yellow, and orange defect emission from ZnO nanostructures: Influence of excitation wavelength

TitleGreen, yellow, and orange defect emission from ZnO nanostructures: Influence of excitation wavelength
Authors
KeywordsPhysics Engineering
Issue Date2006
PublisherAmerican Institute of Physics. The Journal's web site is located at http://apl.aip.org/
Citation
Applied Physics Letters, 2006, v. 88 n. 10 How to Cite?
Abstract
ZnO commonly exhibits luminescence in the visible spectral range due to different intrinsic defects. In order to study defect emissions, photoluminescence from ZnO nanostructures prepared by different methods (needles, rods, shells) was measured as a function of excitation wavelength and temperature. Under excitation at 325 nm, needles exhibited orange-red defect emission, rods exhibited yellow defect emission, while shells exhibited green defect emission. Obvious color change from orange to green was observed for needles with increasing excitation wavelengths, while nanorods (yellow) showed smaller wavelength shift and shells (green) showed no significant spectral shift. Reasons for different wavelength dependences are discussed. © 2006 American Institute of Physics.
Persistent Identifierhttp://hdl.handle.net/10722/45251
ISSN
2013 Impact Factor: 3.515
ISI Accession Number ID
References

 

Author Affiliations
  1. The University of Hong Kong
  2. National Tsing Hua University
  3. Hong Kong University of Science and Technology
DC FieldValueLanguage
dc.contributor.authorDjurišić, ABen_HK
dc.contributor.authorLeung, YHen_HK
dc.contributor.authorTam, KHen_HK
dc.contributor.authorDing, Len_HK
dc.contributor.authorGe, WKen_HK
dc.contributor.authorChen, HYen_HK
dc.contributor.authorGwo, Sen_HK
dc.date.accessioned2007-10-30T06:21:02Z-
dc.date.available2007-10-30T06:21:02Z-
dc.date.issued2006en_HK
dc.identifier.citationApplied Physics Letters, 2006, v. 88 n. 10en_HK
dc.identifier.issn0003-6951en_HK
dc.identifier.urihttp://hdl.handle.net/10722/45251-
dc.description.abstractZnO commonly exhibits luminescence in the visible spectral range due to different intrinsic defects. In order to study defect emissions, photoluminescence from ZnO nanostructures prepared by different methods (needles, rods, shells) was measured as a function of excitation wavelength and temperature. Under excitation at 325 nm, needles exhibited orange-red defect emission, rods exhibited yellow defect emission, while shells exhibited green defect emission. Obvious color change from orange to green was observed for needles with increasing excitation wavelengths, while nanorods (yellow) showed smaller wavelength shift and shells (green) showed no significant spectral shift. Reasons for different wavelength dependences are discussed. © 2006 American Institute of Physics.en_HK
dc.format.extent361121 bytes-
dc.format.extent3553 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypetext/plain-
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.titleGreen, yellow, and orange defect emission from ZnO nanostructures: Influence of excitation wavelengthen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0003-6951&volume=88&issue=10&spage=103107:1&epage=3&date=2006&atitle=Green,+yellow,+and+orange+defect+emission+from+zno+nanostructures:+influence+of+excitation+wavelengthen_HK
dc.identifier.emailDjurišić, AB: dalek@hku.hken_HK
dc.identifier.authorityDjurišić, AB=rp00690en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1063/1.2182096en_HK
dc.identifier.scopuseid_2-s2.0-33644882228en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33644882228&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume88en_HK
dc.identifier.issue10en_HK
dc.identifier.isiWOS:000235905800065-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridDjurišić, AB=7004904830en_HK
dc.identifier.scopusauthoridLeung, YH=7201463866en_HK
dc.identifier.scopusauthoridTam, KH=8533246200en_HK
dc.identifier.scopusauthoridDing, L=10639111500en_HK
dc.identifier.scopusauthoridGe, WK=7103160307en_HK
dc.identifier.scopusauthoridChen, HY=24429084600en_HK
dc.identifier.scopusauthoridGwo, S=18835295800en_HK

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