Please use this identifier to cite or link to this item: doi:10.22028/D291-24642
Title: Tailoring the particle size from mycrometer to nanometer scale by using a surface modifier and their size effect on the fluorescence properties of europium doped yttria
Author(s): Sharma, Pramod K.
Jilavi, Mohammad H.
Nass, Rüdiger
Schmidt, Helmut K.
Language: English
Year of Publication: 1999
OPUS Source: Journal of luminescence. - 82. 1999, 3, S. 187-193
SWD key words: Modifikator
DDC notations: 540 Chemistry
Publikation type: Journal Article
Abstract: The concept of tailored interfaces has been applied to the synthesis of Eu2O3/Y2O3 powders to achieve a narrow size distribution by using a modifier. It was found that the particle size gradually decreased from 6 µm to 10 nm with an increase in concentration of the modifier from 0 to 10 wt% with respect to Eu2O3/Y2O3. Fluorescence spectra of the sample containing 10 wt% of surface modifier showed approximately a 5-fold enhancement of emission intensity of the 5D0 '-> 7F2 transition of Eu3+. This transition is the characteristic transition of europium for red fluorescence under UV light excitation. The concentration dependence of fluorescence in the range from 0-5 mol% Eu2O3 did not reveal any concentration quenching.
Link to this record: urn:nbn:de:bsz:291-scidok-29574
Date of registration: 1-Sep-2010
Faculty: SE - Sonstige Einrichtungen
Department: SE - INM Leibniz-Institut für Neue Materialien
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