The relationship between chemical bond properties and Stokes shift of Eu in some silicate host lattices |
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| Authors: | Ming Yang Siyuan Zhang |
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| Affiliation: | a Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun 130022, People's Republic of China
b Department of Applied Chemistry, Changchun Institute of Technology, Changchun 130021, People's Republic of China |
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| Abstract: | The covalency of each bond in divalent europium doped hosts CaSiO3, SrSiO3, BaSiO3, Sr2LiSiO4F, Ba5SiO4Cl6 and Ba5SiO4Br6 were calculated by using the complicate crystal chemical bond theory. The relationship between the Stokes shift and the bond properties of Eu2+ in these crystals was discussed. The result demonstrates that, in the isostructural crystals that being doped with Eu2+, there is a more precise connection between the magnitude of Stokes shift and the mean covalency of the dopant site. |
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| Keywords: | A. Optical materials D. Crystal structure D. Luminescence D. Phonons |
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