晶体结构对(Zn,Cd)S:Cu电致发光材料发光性能的影响  

Effect of Crystal Structure on the Photoluminescence Property of ZnS:Cu Electroluminescent Material

作　　者：宋伟朋[1] 李志强[1] 李旭[1] 李盼来[1] 

机构地区：[1]河北大学物理科学与技术学院,河北保定071002

出　　处：《河北大学学报（自然科学版）》2005年第6期599-603,共5页Journal of Hebei University(Natural Science Edition)

基　　金：河北省自然科学基金资助项目(502123)

摘　　要：采用X射线衍射法定量测定了不同Cd2+含量下,(Zn,Cd)S:Cu,Cl电致发光粉的晶体结构成分.发现随着Cd2+的增加,材料中立方结构的含量逐渐减少,发光光谱向长波方向移动,而且亮度逐渐降低.利用相变使材料结构由六角结构向立方结构转变,大幅度提高了材料的发光亮度.Different crystal structure ingredient of （Zn, Cd）S, Cl electroluminescent powder was measured by means of x-ray diffraction method at different Cd^2＋ concentration ,and the influence of crystal structure on it＇ brightness was studied. The result shows that with the increase of Cd^2 ＋ , the content of cubic phase would be reduced , electroluminescence spectrum moved to long-wavelength and brightness decreased gradually . To increase the content of cubic phase and advance the brightness , the material was calcined in 1 200℃ , and then be milled. With exterior pressure , the 13 phase was changed to α phase , and material brightness increased quickly. The Electroluminescent material maked by this method not only have a high brightness but also have a good waterproof property.

关 键 词：电致发光 晶体结构 发光光谱 发光亮度 

分 类 号：O482.31[理学—固体物理]