Please use this identifier to cite or link to this item: http://hdl.handle.net/2080/654
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dc.contributor.authorMondal, A-
dc.contributor.authorRam, Shanker-
dc.date.accessioned2008-03-25T09:49:53Z-
dc.date.available2008-03-25T09:49:53Z-
dc.date.issued2008-
dc.identifier.citationJournal of the American Ceramic Society, Vol 91, Iss 1, P 329–332en
dc.identifier.urihttp://dx.doi.org/10.1111/j.1551-2916.2007.02137.x-
dc.identifier.urihttp://hdl.handle.net/2080/654-
dc.descriptionCopyright for the paper belongs to Blackwell Synergyen
dc.description.abstractTetragonal (t) ZrO2 nanoparticles have been obtained by a partial Eu3+→Zr4+ substitution, synthesized using a simple oxalate method at a moderate temperature of 650°C in air. The Eu3+ additive, 2 mol% used according to the optimal photoluminescence (PL), gives small crystallites of the sample. On raising the temperature further, the average crystallite size D grows slowly from 16 nm to a value as big as 49 nm at 1200°C. The Eu3+:t-ZrO2 nanoparticles have a wide PL spectrum at room temperature in the visible to near-IR regions (550–730 nm) in the 5D0→7FJ (Eu3+), J=1–4, electronic transitions. The intensity of the 5D0→7F4 group is as large as that of the characteristic 5D0→7F2 group of the spectrum in the forced electric-dipole allowed transitions. The enhanced t-ZrO2 phase stability and wide PL can be attributed to the combined effects of an amorphous Eu3+-rich surface and part of the Eu3+ doping of ZrO2 of small crystallites.en
dc.description.sponsorshipThe work was partly supported with funds of the Defense Research & Development Organization (DRDO), Government of India.en
dc.format.extent257759 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoen-
dc.publisherBlackwell Synergyen
dc.titleEnhanced Phase Stability and Photoluminescence of Eu3+ Modified t-ZrO2 Nanoparticlesen
dc.typeArticleen
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