Effect of Doping Mode on the Photoluminescence Property of CaS:Eu Phosphor
Eu-doped CaS phosphors were prepared from sulfurization of CaCO3 in H2S gas without flux.The doping of Eu activator was conducted in two different modes:synchronous doping during sulfurization of CaCO3 and subsequent doping by vacuumly calcinning pure CaS and Eu2O3.Comparison of the as-prepared samples indicated that subsequent doping led to larger optimum Eu concentration and lower red emission intensity than synchronous doping.The different luminescence properties are ascribed to the different activator distributions in CaS host induced by different doping modes,and the uniform distribution resulted from synchronous doping is beneficial to the luminescence of the phosphor.
CaS Photoluminescence Doping mode
Yu-Juan Xia Wei-Feng Liu Fu-Qiang Huang Wen-Deng Wang Xin-Ping Lin Min-Ling Liu Jian-lin Shi
State Key Laboratory of High Performance Ceramics and Superfine Microstructure,Shanghai Institute of Ceramics,Chinese Academy of Sciences,1295 Dingxi Road,Shanghai 200050,China
国际会议
The Fifth China International Conference on High-Performance Ceramics (第五届先进陶瓷国际研讨会(CICC-5))
长沙
英文
315-318
2007-05-10（万方平台首次上网日期，不代表论文的发表时间）