8-12 July 2013
Africa/Johannesburg timezone
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YVO4:Eu3+ thin films prepared by PLD

Presented by Ms. Kewele Emily FOKA on 9 Jul 2013 from 17:40 to 18:40
Type: Poster Presentation
Session: Poster1
Track: Track A - Division for Condensed Matter Physics and Materials

Abstract

Oxide thin film phosphors have been given attention because of its high resolution and high efficiency planar display. The oxide based phosphors appeared to be a potential candidate for a red emission display phosphor. YVO4:Eu3+ thin films is one of the most promising oxide-based red phosphor with application in high pressure mercury lamps, television cathode ray tube displays but mostly in plasma display panels [1]. Thin films of YVO4:Eu3+ have been prepared by pulse laser deposition (PLD) which is known as a unique process that provides stoichiometric transfer of target materials. The films were deposited at room temperature with different oxygen pressure. The structure and the luminescence of the YVO4:Eu3+ have been studied. Photoluminescence (PL) showed a strong red emission peak at the 5Do-7F2 transition at 619 nm. This is due to energy transfer to Eu3+ ions from absorption of UV light in the VO43- group [2]. X-ray diffraction spectra and PL indicated that YVO4:Eu3+ thin films phosphor material is successfully prepared by PLD. References [1] Georgescu, S.; Cotoi, E.; Voiculescu, A. M.; Toma, O.; Matei, C. Condensed Matter. 2010, 55, 750. [2] Kim, D.; Kang, W. Bull. Korian. Cham. Soc. 2004, 25, 12.

Award

yes

Level

phd

Supervisor

Prof. Dejene FB dejenebf@qwa.ufs.ac.za University of the Free State

Paper

yes

Primary authors

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