The luminescence of Eu3+ introduced as impurity in Ca3Gd2Si3O12, and Ca3Lu2Si3O12 has been investigated. According to the crystallographic evidences, three sites for the dopant ion are available with different occupation in the two hosts. In both matrixes, the dominant D-5(0) -> F-7(2) emission line reveals a low symmetry of the Eu3+ crystal sites. In the excitation spectrum of Eu doped Ca3Gd2Si3O12 a Gd3+ -> Eu3+ ET process is clearly visible. (C) 2012 Elsevier B.V. All rights reserved.
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Wuhan Univ Sci & Technol, State Key Lab Refractories & Met, Wuhan 430081, Peoples R ChinaWuhan Univ Sci & Technol, State Key Lab Refractories & Met, Wuhan 430081, Peoples R China
Zhang, Jinhua
Ke, Changming
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Wuhan Univ Sci & Technol, State Key Lab Refractories & Met, Wuhan 430081, Peoples R ChinaWuhan Univ Sci & Technol, State Key Lab Refractories & Met, Wuhan 430081, Peoples R China
Ke, Changming
Wu, Hongdan
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Wuhan Univ Sci & Technol, Hubei Key Lab Efficient Utilizat & Agglomerat Met, Wuhan 430081, Peoples R ChinaWuhan Univ Sci & Technol, State Key Lab Refractories & Met, Wuhan 430081, Peoples R China
Wu, Hongdan
Yu, Jishun
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China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Wuhan 430074, Peoples R ChinaWuhan Univ Sci & Technol, State Key Lab Refractories & Met, Wuhan 430081, Peoples R China
Yu, Jishun
Wang, Jingran
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Wuhan Univ Sci & Technol, State Key Lab Refractories & Met, Wuhan 430081, Peoples R ChinaWuhan Univ Sci & Technol, State Key Lab Refractories & Met, Wuhan 430081, Peoples R China
Wang, Jingran
Wang, Yu
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Wuhan Univ Sci & Technol, State Key Lab Refractories & Met, Wuhan 430081, Peoples R ChinaWuhan Univ Sci & Technol, State Key Lab Refractories & Met, Wuhan 430081, Peoples R China