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Effect of H3BO3 on preparation and luminescence properties of submicron green-emitting Ca3Sc2Si3O12 ∶Ce phosphor

Liu Yuan-Hong Zhuang Wei-Dong Gao Wen-Gui Hu Yun-Sheng He Tao He Hua-Qiang

Effect of H3BO3 on preparation and luminescence properties of submicron green-emitting Ca3Sc2Si3O12 ∶Ce phosphor

Liu Yuan-Hong, Zhuang Wei-Dong, Gao Wen-Gui, Hu Yun-Sheng, He Tao, He Hua-Qiang
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  • Received Date:  08 January 2010
  • Accepted Date:  22 March 2010
  • Published Online:  15 November 2010

Effect of H3BO3 on preparation and luminescence properties of submicron green-emitting Ca3Sc2Si3O12 ∶Ce phosphor

  • 1. National Engineering Research Center for Rare Earth Materials General Research Institute for Nonferrous Metals, and Grirem Advcanced Materials Co., Ltd., Beijing 100088,China

Abstract: Green-emitting Ca3Sc2Si3O12:Ce3+ phosphors for white LED are successfully synthesized by a gel-combustion method. The as-synthesized phosphors are investigated by XRD, SEM, and fluorescence spectrophotometer. The results indicate that the crystal structure of the phosphor is pure. The particle morphology of the sample is basically spherical in shape. The particle size is smaller than 1μm. The emission spectrum shows a broad band emission, and the main emission peak locates at 505 nm. Bright green-emission broadening is attributed to the characteristic emissions 5d-2F5/2 and 5d-2F7/2 transitions of Ce3+. The optimal doping concentration of Ce in Ca3-xSc2Si3O12:Ce is x=0.1. The thermal stability and the luminescence intensity of the Ca3Sc2Si3O12:Ce3+ are significantly improved compare with those of YAG:Ce.

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