Title of article
The origin of emission color of reduced and oxidized ZnGa2O4 phosphors
Author/Authors
Kim، نويسنده , , J.S. and Park، نويسنده , , H.L. and Chon، نويسنده , , C.M. and Moon، نويسنده , , H.S. and Kim، نويسنده , , T.W.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2004
Pages
5
From page
163
To page
167
Abstract
The Ga–O octahedral structure of the reduced and the oxidized ZnGa2O4 phosphors was investigated using Reitveld refinement. The correlation between the structural change and the changing emission color was studied. The emission peak shifts to shorter wavelength because of the more contribution of a variation of ligand charge than that of bond length to crystal field. The blueshift behavior of the reduced ZnGa2O4 was also observed in Ge4+-doped ZnGa2O4. In addition, Li+ ions doping in ZnGa2O4 generate extra oxygen ions, and Li+-doped ZnGa2O4 shows the same emission color as the oxidized ZnGa2O4.
Keywords
C. X-ray scattering , A. Zinc gallate , D. Optical properties , E. Luminescence
Journal title
Solid State Communications
Serial Year
2004
Journal title
Solid State Communications
Record number
1788536
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