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Proceedings Paper

Energy transfer mechanisms in green emitting LiBaPO4:Tb3+ phosphors
Author(s): Ru-Yuan Yang; Hsuan-Lin Lai; Yu-Ming Peng; Shoou-Jinn Chang
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Paper Abstract

Green emitting LiBa1-xPO4:xTb3+ up-conversion phosphors with various concentrations (x=0.1, 0.2, 0.3, 0.4, 0.5) of Tb3+ ions were synthesized by solid state reaction method at 1300 □ for 3 hour in air. The impure phases were appeared as Tb3+ ion concentration was further increased (x more than 0.2). The luminescence intensity reached a maximum when the concentration of Tb3+ ion was x = 0.2, and then decreased with the increases of the Tb3+ concentration due to concentration quenching effect. In addition, it is identified that the d-d interaction plays a major role in the mechanism of concentration quenching of LiBaPO4:Tb3+ and all the chromaticity (x, y) of LiBa1-xPO4:xTb3+ phosphors are located in the green region (0.33, 0.56 ).

Paper Details

Date Published: 6 August 2014
PDF: 6 pages
Proc. SPIE 9232, International Conference on Optical Particle Characterization (OPC 2014), 92320Z (6 August 2014); doi: 10.1117/12.2065346
Show Author Affiliations
Ru-Yuan Yang, National Pingtung Univ. of Science and Technology (Taiwan)
Hsuan-Lin Lai, National Cheng Kung Univ. (Taiwan)
Yu-Ming Peng, National Cheng Kung Univ. (Taiwan)
Shoou-Jinn Chang, National Cheng Kung Univ. (Taiwan)

Published in SPIE Proceedings Vol. 9232:
International Conference on Optical Particle Characterization (OPC 2014)
Nobuhiro Aya; Norihiko Iki; Tsutomu Shimura; Tomohiro Shirai, Editor(s)

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