Title :
Luminescent mechanism of ZnGa2O4:Mn
Author :
Park, Y.-K. ; Han, J.I. ; Kwak, M.-G. ; Ju, S.H.
Author_Institution :
Korea Electron. Technol. Inst., Kyunggi, South Korea
Abstract :
Low voltage green phosphor, ZnGa2O4:Mn, powder was prepared at a high temperature of more than 900°C in Ar or vacuum. From compositional analysis, it was confirmed that the concentration of oxygen decreased by about 13% in ZnGa2O4:Mn phosphor sintered in vacuum but not in Ar. This induces a deficiency of oxygen content in the phosphor. This means that this lack of oxygen results in the formation of an energy level near 513 nm which contributes to the improvement of the brightness of ZnGa2O4:Mn
Keywords :
brightness; gallium compounds; manganese; phosphors; photoluminescence; powders; sintering; zinc compounds; 513 nm; 900 C; Ar; LV phosphor; O content; PL spectra; ZnGa2O4:Mn; ZnGa2O4:Mn powder; brightness; compositional analysis; energy level formation; low voltage green phosphor; luminescent mechanism; Argon; Atomic measurements; Brightness; Doping; Phosphors; Powders; Shape measurement; Solids; X-ray diffraction; Zinc;
Conference_Titel :
Properties and Applications of Dielectric Materials, 1997., Proceedings of the 5th International Conference on
Conference_Location :
Seoul
Print_ISBN :
0-7803-2651-2
DOI :
10.1109/ICPADM.1997.616534
