低温燃烧法合成γ-LiAlO_2：Eu^(3＋)红色荧光粉及其发光性能  

Synthesis of γ-LiAlO_2:Eu^(3+) red phosphor by low-temperature combustion and its luminescence characterization

作　　者：张欢[1] 童云[1] 杨定明[2] 陈菊 

机构地区：[1]西南科技大学 四川省非金属复合与功能材料重点实验室-省部共建国家重点实验室培育基地,绵阳621010 [2]西南科技 大学四川省非金属复合与功能材料重点实验室-省部共建国家重点实验室培育基地,绵阳621010 [3]四川省绵阳市游仙职教中心,绵阳621000

出　　处：《化工新型材料》2012年第7期64-66,共3页New Chemical Materials

基　　金：国家自然科学基金项目(50802078);西南科技大学博士基金(08zx0103);西南科技大学实验开放基金项目(10xnkf40)

摘　　要：低温燃烧法合成了γ-LiAlO2:Eu3+红色荧光粉,采用XRD、SEM、PL对样品进行了结构、形貌及发光性能表征。结果表明样品为四方晶系结构,在395nm的紫外光激发下,样品发射峰位于578、588、613、651和700nm,对应Eu3+离子的5 D0→7FJ=0,1,2,3,4的能级跃迁,主峰位于613nm处。其发光强度与Eu3+和H3BO3的掺量密切相关。The red phosphor of γ-LiAlO2：Eu^3＋ were synthesized by low-temperature combustion method. The char acteristics of samples were investigated by means of X-ray diffraction（XRD）, scanning electron microscopy （SEM） and photoluminescence（PL）. The results showed that phosphor was pure-phase of tetragonal crystal system. Excited by 238nm UV light, the emission peaks located at 578,588,613,651 and 700nm corresponded to the 5D0→7FJ = 0,1,2,3,4 typical transitions of Eu3＋ , respectively. The main peak was at 613nm. luminous intensity of γ-LiAlO2：Eu^3＋ was the largest at 613nm. The photoluminescence intensity of samples was interrelated with concentration of Eu3＋ ion and Ha BOa.

关 键 词：低温燃烧法 γ-LiAlO2:Eu3+ 红色荧光粉 

分 类 号：TQ422[化学工程]