氯化物助熔剂对Y_3Al_5O_(12)∶Ce^(3+)荧光粉性能的影响  

Effects of Chloride Fluxes on the Luminescence Properties of Y_3Al_5O_(12)∶Ce^(3+) Phosphors

作　　者：张宝昌[1] 周瑞婷[2] 张德文[1] 孙淑清[2] 

机构地区：[1]长春工业大学化学与生命科学学院,吉林长春130021 [2]天津大学理学院,天津300072

出　　处：《化学工业与工程》2011年第2期6-10,共5页Chemical Industry and Engineering

摘　　要：选用卤化物LiCl、NaCl、KCl和SrCl2等作为助熔剂,合成了一系列YAG∶Ce粉体,并研究了助熔剂对YAG∶Ce荧光粉晶相、形貌和发光性能的影响。结果表明适量助熔剂有利于YAG∶Ce荧光粉的晶化,合成的荧光粉具有石榴石的结构,规则的形貌和窄的粒度分布。添加适量助熔剂可以提高YAG∶Ce荧光粉的发光强度。最适宜的添加量分别是:LiCl 10%,NaCl 7%,KCl 7%,SrCl2 4%。In this paper,LiCl,NaCl,KCl or SrCl2 were selected as fluxes and the effect of the chlorides fluxes on crystallite,morphology and luminescence properties of the YAG∶ Ce phosphor powders were in-vestigated.It was found that the YAG∶ Ce phosphors obtained from initiative materials containing chlorides fluxes exhibited typical garnet structure and no impurity phase.The YAG∶ Ce particles are regular spheri-cal or elliptical morphology,with small size and narrow granular distribution.The emission intensities of the YAG∶ Ce phosphors increased with adding appropriate amounts of chlorides fluxes to initiative materi-als.The optimum amounts of chloride fluxes were 10% for LiCl,7% for NaCl,7% for KCl or 4% for SrCl2,respectively.

关 键 词：YAG∶Ce荧光粉 助熔剂 发光性能 WLED 

分 类 号：O73[理学—晶体学]