摘要
制备了可用于蓝色TFEL的粉末发光材料SrGa_2S_4:Ce,并对其晶体结构进行了X射线衍射分析,测量并研究了其激发光谱和发射光谱,同时研究了Ce^(3+)浓度的变化对SrGa_2S_4:Ce的激发光谱、发射光谱、色纯度及发光强度的影响,结果表明SrGa_2S_4:Ce可发射纯蓝色光,色纯度极佳,实现其高效率的、纯蓝色发射的最佳Ce^(3+)浓度为3～4mol％。
The blue-emitting phosphor SrGa2S4 : Ce was prepared, whose crystallinity was analysed by X-ray diffraction. The excitation and emission spectra of SrGa2S4: Ce were measured and investigated, and the effects of the cerium concentration on the PL properties of SrGa2S4: Ce powder wrer studied. The results of PL measurement showed that SrGa2S4 :Ce phosphor achieved an even more saturated blue emission, and the optimum cerium concentration for high efficiency and more saturated blue emission was ranged from 3.0 to 4.0 mol%.
出处
《发光学报》
EI
CAS
CSCD
北大核心
1996年第4期332-336,共5页
Chinese Journal of Luminescence
关键词
光致发光
蓝色
发光材料
SrGa_2S_4:Ce, photoluminescence, blue-emitting phosphor
