Photoluminescence of SrGdGa3O7∶RE (RE=Ce3+, Pr3+, Tb3+) under VUV-UV Excitation

稀土学报(英文版), 2005, 23(3): 314-318.

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1.State Key Laboratory of Optoelectronic Materials and Technologies, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China;School of Chemical Science, South China University of Technology, Guangzhou 510641, China

2.State Key Laboratory of Optoelectronic Materials and Technologies, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China

3.State Key Laboratory of Optoelectronic Materials and Technologies, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China;Guangzhou Research Institute of Non-Ferrous, Guangzhou 510651, China

4.Laboratory of Beijing Synchrotron Radiation, Institute of High Energy Physics, Chinese Academy of Science, Beijing 100039, China

5.State Key Laboratory of Optoelectronic Materials and Technologies, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China

基金项目: 教育部博士基金(20020558034) 广东省自然科学基金(001277) 国家自然科学基金(20171046)

Photoluminescence of SrGdGa3O7∶RE (RE=Ce3+, Pr3+, Tb3+) under VUV-UV Excitation

Keywords： phosphor

SrGdGa3O7:RE (RE=Ce3+, Pr3+, Tb3+) were prepared by traditional solid-state reaction and their luminescence properties in the range of VUV-Vis were investigated. The two broad bands situated at about 177 and 217 nm in excitation spectra are attributed to the host lattices absorption, and they have no considerable change when doped different rare earth ions. The f-d transitions of Pr3+ and Tb3+ calculated by the formula gathered by Dorenbos were compared to the experimental results. The excitation spectra also show the sharp Gd3+ excitation line at about 274 nm pointing to an efficient energy transfer from Gd3+ to Pr3+ and Tb3+. All of the emission spectra present the characteristic emissions of rare earth ions when excited by VUV and UV.

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Photoluminescence of SrGdGa3O7∶RE (RE=Ce3+, Pr3+, Tb3+) under VUV-UV Excitation

参考文献