| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7906632 | Optical Materials | 2018 | 4 Pages |
Abstract
The spectroscopic properties of Mn4+ (3â¯d3) ions in the garnet Y2Mg3Ge3O12 and in the commercial Mg28Ge7.55O32F15.04 (MFG) phosphors are compared. We find that despite the differences in host crystal composition and crystal structures, the 4A2gâ 4T1g and 2Egâ4A2g optical transitions of the Mn4+ ion occur at similar energies. We provide some insights into the nature of chemical bonding that is responsible for the observed similarity in the spectroscopic data. Additionally, discussion is given to the site preference of the Mn4+ ion in the MFG host crystal.
Keywords
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Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
A.M. Srivastava,