Photoluminescence and structural characteristics of a new orange phosphor: Ca2.6Sr2.4(PO4)3Cl:Eu3+ |
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| Authors: | F. Q. Ren D. H. Chen |
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| Affiliation: | (1) State Key Laboratory of Materials Processing and Die & Mould Technology, College of Materials Science and Engineering, Huazhong University of Science & Technology, Wuhan, 430074, Hubei, People’s Republic of China;(2) College of Materials Science and Engineering, Huazhong University of Science & Technology, Wuhan, 430074, Hubei, People’s Republic of China; |
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| Abstract: | A novel orange-emitting phosphor, Ca2.6Sr2.4(PO4)3Cl:Eu3+, was prepared by a modified solid-state reaction and X-ray powder diffraction (XRD) analysis confirmed the formation of Ca2.6Sr2.4(PO4)3Cl:Eu3+. Photoluminescence (PL) results showed that the phosphor can be efficiently excited by UV-visible light from 380 to 500 nm, and exhibited bright orange emission. The effects of the doped-Eu3+ concentration in Ca2.6Sr2.4(PO4)3Cl:Eu3+ on the PL were investigated in detail. The results showed that the relative PL intensity decreases with Eu3+ concentration increasing due to concentration quenching. TEM images show that the grain size of Ca2.6Sr2.4(PO4)3Cl:Eu3+ is about 45 nm, which is in full agreement with the theoretical calculation data from the XRD patterns. |
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