Synthesis of Green-Emitting Phosphor Y3Al5O12: Tb, Ce, Gd by Sol-Gel Method

Abstract:

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Green-emitting Y3Al5O12: Tb phosphor materials have been widely studied because of their high luminescence efficiency and stability under the conditions of high irradiance with an electron beam. In this paper, Green-emitting phosphor of yttrium aluminum garnet (Y3Al5O12 or YAG) doped with Tb3+, Ce3+ and Gd3+ was synthesized by sol-gel method. By means of TG/DSC, XRD, and photoluminescence (PL) performance, the sintering condition and its influence on the powder’s emitting performance were studied. The experimental results showed that, Y2.8Tb0.12 Ce0.08-x GdxAl5O12 synthesized by sol-gel method was a kind of phosphor of good performance. When the value of x was set at 0.04, the best emitting performance was obtained. The Y3Al5O12: Tb, Ce, Gd particles had fine size, spherical shape, filled morphology, high crystallinity, and good brightness.

Info:

Periodical:

Key Engineering Materials (Volumes 336-338)

Edited by:

Wei Pan and Jianghong Gong

Pages:

610-612

DOI:

10.4028/www.scientific.net/KEM.336-338.610

Citation:

L. M. Dong et al., "Synthesis of Green-Emitting Phosphor Y3Al5O12: Tb, Ce, Gd by Sol-Gel Method", Key Engineering Materials, Vols. 336-338, pp. 610-612, 2007

Online since:

April 2007

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Price:

$35.00

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