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http://dx.doi.org/10.4191/KCERS.2003.40.7.637

Luminescence Properties of Zn2SiO4:Mn, M(M=Cr, Ti) Green Phosphors Prepared by Sol-gel Method  

안중인 (한국화학연구원 형광물질연구팀)
한정화 (한라대학교 신소재공학과)
박희동 (한국화학연구원 형광물질연구팀)
Publication Information
Journal of the Korean Ceramic Society / v.40, no.7, 2003 , pp. 637-643 More about this Journal
Abstract
In order to improve the photoluminescent properties and crystallinity, Zn$_2$SiO$_4$:Mn, M(M=Cr, Ti) phosphors were synthesized by the sol-gel method. The willemite single phase was obtained at 110$0^{\circ}C$, which is lower temperature than that of the conventional solid-state reaction (130$0^{\circ}C$). The characteristics of fired samples were obtained by a 147 nm excitation source under VUV (Vacuum Ultraviolet). To investigation the effect of co-dopant, the content of Mn and the ratio of $H_2O$ to TEOS was fixed as 2 ㏖% and 36. 1, respectively. The highest emission intensity was obtained when the concentration of Cr and Ti was 0.1 ㏖% relative to Zn$_2$SiO$_4$:Mn. While the emission intensity decrease continuously the decay time improved as increased the Cr concentration. In the case of Ti added samples, however, the emission intensity increase up to 2 ㏖％ concentration.
Keywords
Phosphor; PDP; Sol-gel method; Photoluminescence; Decay time;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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