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dc.contributor.authorTing, CCen_US
dc.contributor.authorChen, SYen_US
dc.contributor.authorHsieh, WFen_US
dc.contributor.authorLee, HYen_US
dc.date.accessioned2014-12-08T15:43:08Z-
dc.date.available2014-12-08T15:43:08Z-
dc.date.issued2001-12-01en_US
dc.identifier.issn0021-8979en_US
dc.identifier.urihttp://dx.doi.org/10.1063/1.1413490en_US
dc.identifier.urihttp://hdl.handle.net/11536/29196-
dc.description.abstractEr3+-Y3+ codoped TiO2 films were prepared on a fused silica substrate by the sol-gel process. The effect of Y3+ codoping on the similar to1.54 mum photoluminescence (PL) properties of Er3+-doped TiO2 films are investigated. Enhancement of PL properties due to Y3+ codoping by a factor of 10 for intensity and of 1.5 for the full width at half maximum in comparison with the Er3+-Al3+ codoped SiO2 system has been observed in the film annealed at Er3+:Y3+:Ti4+=5:30(similar to 50):100. Extended x-ray absorption fine structure measurements show that the local chemical environment of Er3+ ions in the Er3+-Y3+ codoped TiO2 films is similar to that in Er2O3. The average spatial distance between Er3+ ions is enlarged due to the partial substitution of Y3+ for Er3+ ions in the Er2O3-like local structure. It is believed that the more intense PL emission of the Er3+-Y3+ codoped TiO2 films can be attributed to the better dispersion and distorted local structure of Er3+ ions in the TiO2 host matrix by yttrium codoping. (C) 2001 American Institute of Physics.en_US
dc.language.isoen_USen_US
dc.titleEffects of yttrium codoping on photoluminescence of erbium-doped TiO2 filmsen_US
dc.typeArticleen_US
dc.identifier.doi10.1063/1.1413490en_US
dc.identifier.journalJOURNAL OF APPLIED PHYSICSen_US
dc.citation.volume90en_US
dc.citation.issue11en_US
dc.citation.spage5564en_US
dc.citation.epage5569en_US
dc.contributor.department材料科學與工程學系zh_TW
dc.contributor.department光電工程學系zh_TW
dc.contributor.departmentDepartment of Materials Science and Engineeringen_US
dc.contributor.departmentDepartment of Photonicsen_US
dc.identifier.wosnumberWOS:000172129200017-
dc.citation.woscount42-
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