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Proceedings Paper

Temperature dependence of structural and luminescent properties of Tb3+ doped YPO4
Author(s): Weihua Di; Xiaojun Wang; Baojiu Chen; Xiaoxia Zhao; Guzhong Ren; Qingyu Meng; Yanmin Yang; Huasheng Lai; Shaozhe LÜ
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Paper Abstract

The solution precipitation is used to synthesize the Tb doped yttrium phosphates. The as-synthesized is the monoclinic phased YPO4×2H2O with churchite-type structure, which is transformed to the tetragonal phased YPO4 with xenotime-type structure as the temperature approaches 200°C during the thermal treatment process. This phase transformation process can not be observed in some routes that need a higher synthetic temperature, in which, only a high-temperature phase is obtained. The luminescent efficiency dependence on the heat-treatment temperature is investigated. The luminescent efficiency presents a two-step increase respectively around 300 and 700°C. Results indicate that the significant increase of luminescent efficiency at 300°C is not related to the phase structure transformation, but to the decrease of OH- ions content, and that the significant increase of luminescent efficiency at 700°C is related to the increase of crystallinity, which may increase the absorption to VUV light.

Paper Details

Date Published: 26 January 2006
PDF: 8 pages
Proc. SPIE 6030, ICO20: Display Devices and Systems, 60300M (26 January 2006); doi: 10.1117/12.667380
Show Author Affiliations
Weihua Di, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Xiaojun Wang, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Baojiu Chen, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Xiaoxia Zhao, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Guzhong Ren, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Qingyu Meng, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Yanmin Yang, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Huasheng Lai, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Shaozhe LÜ, Changchun Institute of Optics, Fine Mechanics and Physics (China)


Published in SPIE Proceedings Vol. 6030:
ICO20: Display Devices and Systems
Tatsuo Uchida; Xu Liu; Hang Song, Editor(s)

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