Optical Properties of Y2O3:Eu3+ Red Emitting Phosphor Obtained via Spray Pyrolysis |
| Ž. Antić, R. Krsmanović, V. Ðorđević, T. Dramićanin and M.D. Dramićanin
Vinča Institute of Nuclear Sciences, P.O. Box 522, Belgrade, Serbia |
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| In the present work we explored the possibility of obtaining Y2O3:Eu3+ μm size particles by an ultrasonic spray pyrolysis method. As prepared sample constitutes of spherical, hollow particles with an average size of 1 to 2 μm. Pure, well crystalline, cubic Y2O3 is formed after additional thermal treatment at 800°C for 2 h. A detailed optical investigation has been done with photoluminescence measurements in the energy and time domains. Experimental intensity parameters, transition rates and quantum efficiency of the 5 D0 emission are evaluated on the basis of Judd-Ofelt theory. |
| DOI: 10.12693/APhysPolA.116.622 PACS numbers: 32.50.+d, 81.20.Rg, 42.70.-a |