摘要
以ＳｒＳ∶Ｃｅ和ＺｎＳ的混晶为原料用电子束蒸发的方法制备了蓝色ＳｒＳ∶Ｃｅ薄膜，研究了新制备ＳｒＳ∶Ｃｅ膜的光致发光（ＰＬ）性能和它的电致发光（ＥＬ）器件的电致发光性能，并与直接用ＳｒＳ∶Ｃｅ粉末制备的薄膜进行了对比．测量了它们的Ｘ射线衍射谱、ＰＬ激发光谱和发射光谱以及电致发光器件的ＥＬ光谱，结果表明混晶法制备的薄膜比直接法好，ＺｎＳ的引入弥补了在ＳｒＳ∶Ｃｅ薄膜中Ｓ的不足，且避免了在直接用ＳｒＳ∶Ｃｅ材料蒸发过程中Ｓ气氛对环境的污染．
SrS∶Ce blue thin films were prepared by electron beam evaporation method using target made of SrS∶Ce powder doped with ZnS and SrS∶Ce powder directly. The Xray patterns and PL spectra and EL spectra of them were measured. The characteristics of PL and EL of SrS∶Ce thin films made by SrS∶Ce powder doped with ZnS were better than that of SrS∶Ce thin films made by SrS∶Ce powder directly. The former may compensate the lack of S in SrS∶Ce thin film and aviod the contamination of S when producing SrS∶Ce thin film using SrS∶Ce powder directly.
出处
《上海大学学报（自然科学版）》
CAS
CSCD
1997年第S1期171-175,共5页
Journal of Shanghai University:Natural Science Edition
基金
国家自然科学基金及上海市教委资助
