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Preparation of Sr0.88-1.5xMoO4:0.08Eu3+, xSm3+ red-emitting phosphors by hydrothermal method and their luminescence properties through energy transfer

XIU-JUAN GENG1,2,* , YONG-JIE CHEN2, YAN-WEN TIAN1, LIN-JIU XIAO2, YING XIE2

Affiliation

  1. School of Materials and Metallurgy，Northeastern University，Shenyang 110004, PR China
  2. Shenyang University of Chemical Technology，Shenyang 110142, PR China

Abstract

A series of red-emitting phosphors Sr0.88-1.5xMoO4:0.08Eu3+, xSm3+ have been synthesized by hydrothermal method. The phosphors have the advantages of narrower particle size distribution and regular homogeneous shape. The luminescent properties of the phosphors were systematically studied. The introduction of Sm3+ into the red-emitting phosphors can generate a strong excitation line at 405 nm, originating from the 6 H5/2→4 K11/2 transition of Sm3+, significantly extending the excitation region for matching the near-ultraviolet light-emitting diodes (-400 nm). Energy transfer from Sm3+ to Eu3+ was observed .When the mole fraction of Sm3+ is 2%, the emission intensity of red light excited at 405 nm is the strongest..

Keywords

Red-emitting phosphors, Energy transfer, Hydrothermal method.

Submitted at: Aug. 22, 2011
Accepted at: July 19, 2012

Citation

XIU-JUAN GENG, YONG-JIE CHEN, YAN-WEN TIAN, LIN-JIU XIAO, YING XIE, Preparation of Sr0.88-1.5xMoO4:0.08Eu3+, xSm3+ red-emitting phosphors by hydrothermal method and their luminescence properties through energy transfer, Journal of Optoelectronics and Advanced Materials Vol. 14, Iss. 7-8, pp. 577-581 (2012)