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dc.contributorVirginia Tech
dc.contributor.authorMeltzer, R. S.
dc.contributor.authorFeofilov, S. P.
dc.contributor.authorTissue, B.
dc.contributor.authorYuan, H. B.
dc.date.accessioned2014-05-07T15:36:53Z
dc.date.available2014-05-07T15:36:53Z
dc.date.issued1999-11
dc.identifier.citationMeltzer, R. S.; Feofilov, S. P.; Tissue, B.; Yuan, H. B., "Dependence of fluorescence lifetimes of Y2O3 : Eu3+ nanoparticles on the surrounding medium," Phys. Rev. B 60, R14012(R) DOI: http://dx.doi.org/10.1103/PhysRevB.60.R14012
dc.identifier.issn1098-0121
dc.identifier.urihttp://hdl.handle.net/10919/47823
dc.description.abstractThe radiative lifetime, tau(R), of the D-5(0) metastable excited state of Eu3+ ions in nanocrystalline monoclinic Y2O3 samples is about four times longer than that in the micron size powder of the same material. The Eu3+ radiative lifetime was measured in nanocrystals surrounded with air as well as those immersed in different liquids. It is shown that the radiative lifetime changes with the index of refraction of the immersion medium and provides a unique test of the standard formula relating tau(R) and the oscillator strength. The magnitude of the effect is determined by the "filling factor" (the fraction of the sample volume occupied by nanocrystals) which can therefore be determined. [S0163-1829(99)51144-2].
dc.description.sponsorshipNSF Grant No. DMR-9871864
dc.language.isoen_US
dc.publisherAmerican Physical Society
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjecteu3+y2o3 nanocrystals
dc.subjectphysics, condensed matter
dc.titleDependence of fluorescence lifetimes of Y2O3 : Eu3+ nanoparticles on the surrounding medium
dc.typeArticle - Refereed
dc.contributor.departmentChemistryen_US
dc.identifier.urlhttp://journals.aps.org/prb/abstract/10.1103/PhysRevB.60.R14012
dc.date.accessed2014-04-23
dc.title.serialPhysical Review B
dc.identifier.doihttps://doi.org/10.1103/PhysRevB.60.R14012


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