Optical Properties of Y2O3:Eu3+ Red Emitting Phosphor Obtained via Spray Pyrolysis
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In the present work we explored the possibility of obtaining Y2O3:Eu3+ mu m-size particles by an ultrasonic spray pyrolysis method. As-prepared sample constitutes of spherical, hollow particles with an average size of 1 to 2 mu m. Pure, well crystalline, cubic Y2O3 is formed after additional thermal treatment at 800 degrees 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 D-5(0) emission are evaluated on the basis of Judd-Ofelt theory.
Извор:Acta Physica Polonica. Series A: General Physics, Physics of Condensed Matter, Optics and Quantum Electronics, Atomic and Molecular Physics, Applied Physics, 2009, 116, 4, 622-624
- International School and Conference on Photonics (PHOTONICA09), Aug 24-28, 2009, Belgrade, Serbia
ISSN: 0587-4246 (print)