Surface electronic properties of ZnO nanoparticles

Ton-That, C; Phillips, MR; Foley, M; Moody, SJ; Stampfl, APJ

Surface electronic properties of ZnO nanoparticles

Ton-That, C

Phillips, MR

Foley, M

Moody, SJ Stampfl, APJ

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Publication Type:: Journal Article
Citation:: Applied Physics Letters, 2008, 92 (26)
Issue Date:: 2008-07-11

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Field	Value	Language
dc.contributor.author	Ton-That, C https://orcid.org/0000-0003-3276-1739	en_US
dc.contributor.author	Phillips, MR https://orcid.org/0000-0003-1522-9281	en_US
dc.contributor.author	Foley, M https://orcid.org/0000-0003-4077-445X	en_US
dc.contributor.author	Moody, SJ	en_US
dc.contributor.author	Stampfl, APJ	en_US
dc.date.issued	2008-07-11	en_US
dc.identifier.citation	Applied Physics Letters, 2008, 92 (26)	en_US
dc.identifier.issn	0003-6951	en_US
dc.identifier.uri	http://hdl.handle.net/10453/8376
dc.description.abstract	The surface electronic structure of ZnO nanoparticles has been studied with photoemission and x-ray absorption spectroscopies. Contrary to expectation, ZnO:Zn phosphor nanoparticles were found to contain a lower oxygen vacancy density on the surface than undoped ZnO counterparts, but oxygen vacancies are in different chemical environments. Cathodoluminescence shows intense green luminescence from the ZnO:Zn surface, while the undoped nanoparticles exhibit only the near-band-edge emission. The results indicate the roles of surface oxygen vacancies and their environment in the previously unexplained green luminescence from the ZnO:Zn material. © 2008 American Institute of Physics.	en_US
dc.relation.ispartof	Applied Physics Letters	en_US
dc.relation.isbasedon	10.1063/1.2952955	en_US
dc.subject.classification	Applied Physics	en_US
dc.title	Surface electronic properties of ZnO nanoparticles	en_US
dc.type	Journal Article
utslib.citation.volume	26	en_US
utslib.citation.volume	92	en_US
utslib.for	0204 Condensed Matter Physics	en_US
utslib.for	02 Physical Sciences	en_US
utslib.for	09 Engineering	en_US
utslib.for	10 Technology	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
pubs.organisational-group	/University of Technology Sydney/Strength - CCET - Centre for Clean Energy Technology
utslib.copyright.status	open_access
pubs.issue	26	en_US
pubs.publication-status	Published	en_US
pubs.volume	92	en_US

Abstract:

The surface electronic structure of ZnO nanoparticles has been studied with photoemission and x-ray absorption spectroscopies. Contrary to expectation, ZnO:Zn phosphor nanoparticles were found to contain a lower oxygen vacancy density on the surface than undoped ZnO counterparts, but oxygen vacancies are in different chemical environments. Cathodoluminescence shows intense green luminescence from the ZnO:Zn surface, while the undoped nanoparticles exhibit only the near-band-edge emission. The results indicate the roles of surface oxygen vacancies and their environment in the previously unexplained green luminescence from the ZnO:Zn material. © 2008 American Institute of Physics.

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http://hdl.handle.net/10453/8376