Concentration quenching of Eu in SrO·Al2O3:Eu phosphor |
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Authors: | Dong WangYongxiang Li Minquan Wang |
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Affiliation: | a State Key Lab of High Performance Ceramic and Superfine Microstructure, Shanghai Institute of Ceramics, Shanghai 200050, Chinab State Key Lab of Silicon Materials Science, Zhejiang University, Hangzhou 310027, China |
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Abstract: | The luminescence of Eu2+ in alkaline earth aluminates of the type SrO·Al2O3 has been studied. In SrO·Al2O3:Eu2+ phosphor, green Eu2+ luminescence is observed from Eu2+ on the two different strontium sites present in the lattice. Their concentration quenching processes of the two inequivalent Eu2+ ions are investigated, respectively, and the corresponding concentration quenching mechanism is verified as dipole-dipole interaction. The value of the critical transfer distance is calculated. |
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Keywords: | Alkaline earth aluminate phosphor |
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