掺镁的铝酸锶铕磷光体的发光特性  

A study on luminescence of Mg doped SrAl_2O_4:Eu phosphor

作　　者：宋庆梅[1] 陈暨耀[1] 吴中亚 

机构地区：[1]复旦大学材料科学系

出　　处：《复旦学报（自然科学版）》1995年第1期103-106,共4页Journal of Fudan University：Natural Science

摘　　要：研制了掺Ｍｇ的ＳｒＡｌ２Ｏ４：Ｅｕ磷光体．Ｍｇ作为杂质掺入后，并未改变磷光体的发射光谱，却使磷光体获得长余辉发光特性．余辉发光强度按ｔ－１．１的双曲线形式衰减．热释光谱的测定显示出，在３４３Ｋ时磷光体存在一较宽的热释光峰，这表明在磷光体中形成了Ｍｇ的杂质陷阱能级，其能级深度约为０．３１ｅＶ．g doped SrAl2O4:Eu phosphor has been synthesised. Mg,doped into the phosphor as an impurity, does not change the emission spectrum of phosphor, but makes the phosphor possess a long persistent aftergrow characteristic with hyperbola type decay (the radiant intensity t-11). The measurement for thermoluminescence shows that there exsist a broad thermolundnescence peak (343 K), reflecting trap energy level of Mg with 0.31 eV depth is formed in the phosphor.

关 键 词：发光 热释光 铝酸锶铕 镁 发光粉 

分 类 号：TN104.3[电子电信—物理电子学]