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Hybrid precursors synthesis and photoluminescence of rare earth ions - activated Sr3Y (PO4)3 phosphors

SHUAI XU1, XIUZHEN XIAO1, BING YAN1,*

Affiliation

  1. Department of Chemistry, Tongji University, Shanghai 200092, China

Abstract

Using rare earth coordination polymers with salicylic acid as precursors and composing with the polyvinyl alcohol (PVA) as dispersing media, Eu3+, Tb3+, Ce3+ – activated Sr3Y(PO4)3 phosphors with different doping concentration and Sr3Y(PO4)3: 3 mol % Pr3+ were prepared via an modified wet chemical technology. The emission intensities of activators have been found to depend strongly on the doping concentration. The result is that the optimum concentration for Eu3+ is 7 mol %, for Tb3+ is 9 mol % and for Ce3+ is 3 mol %, respectively. Furthermore, the crystal field depression value D (Ln, A) of Sr3Y(PO4)3 have been calculated to be 16, 895 cm-1 when Ce3+ was doped in Sr3Y(PO4)3..

Keywords

Optical materials, Chemical synthesis, Luminescence, Optical properties, Sr3Y(PO4)3 phosphors.

Submitted at: Sept. 7, 2007
Accepted at: Oct. 7, 2008

Citation

SHUAI XU, XIUZHEN XIAO, BING YAN, Hybrid precursors synthesis and photoluminescence of rare earth ions - activated Sr3Y (PO4)3 phosphors, Journal of Optoelectronics and Advanced Materials Vol. 10, Iss. 10, pp. 2727-2731 (2008)