MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY
|
1999年
/
64卷
/
02期
关键词:
phosphor film;
sol-gel method;
silicates;
D O I:
10.1016/S0921-5107(99)00155-5
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
Mn2+-doped Zn2SiO4 phosphor films were deposited on silicon and quartz glass substrates by sol-gel method (dip-coating). The variations of sol viscosity with time, him thickness with the number of layers were investigated in the Zn2SiO4:Mn system. The results of XRD and IR showed that the Zn2SiO4:Mn films remained amorphous below 700 degrees C and crystallized completely around 1000 degrees C. From AFM studies, it was observed that the grains of 0.5-0.8 mu m in size packed closely in Zn2SiO4:Mn films, which were uniform and crack free. The luminescence properties of Zn2SiO4:Mn films were characterized by absorption, excitation and emission spectra, as well as luminescence decay. (C) 1999 Published by Elsevier Science S.A. All rights reserved.