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Proceedings Paper

Synthesis of yttrium aluminium garnet doped with cerium for application in a new generation luminescent lighting devices
Author(s): Vasilica Schiopu; Mugur Macrin; Ileana Cernica
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Paper Abstract

Future electric lights will be composed of white LEDs (Light Emitting Diodes) and for this reason the development of new luminescence materials has become a great challenge to researchers. In the present paper it is presented a sol-gel method, simple and with superior potential for synthesis of nanoparticles of yttrimn aluminium garnet doped with cerium luminescent powders. This method has a big potential for application in new generation luminescent lighting devices. The gels were prepared using stoichiometric amounts of reagent-grade Y203 and A1203 as the starting materials. The XRD pattern of the powder calcinated al 1100°C shows the formation of single-phase nano-crystal garnet materials. The XRD measurements and AFM measurements show that we obtained a phosphorus with grain size of 24 nm. The emission spectra of white LED demonstrate that acquired phosphor has good applicability in optoelectronics.

Paper Details

Date Published: 8 May 2007
PDF: 6 pages
Proc. SPIE 6635, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies III, 663511 (8 May 2007); doi: 10.1117/12.742081
Show Author Affiliations
Vasilica Schiopu, National Institute for Research and Development in Microtechnologies (Romania)
Mugur Macrin, S.C. Microelectronica S.A. (Romania)
Ileana Cernica, National Institute for Research and Development in Microtechnologies (Romania)


Published in SPIE Proceedings Vol. 6635:
Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies III

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