溶胶-凝胶法制备绿色发光粉Zn_2SiO_4:Mn^(2+)及其发光性能  

Preparation and Photoluminescence of Green Zn_2SiO_4:Mn^(2+) Phosphor by Sol-gel Method

作　　者：蔡进军[1] 王忆[2] 潘欢欢[1] 曾庆光[2] 胡社军[2] 

机构地区：[1]五邑大学化学与环境工程系,广东江门529020 [2]五邑大学纳米与薄膜材料研究所,广东江门529020

出　　处：《发光学报》2010年第1期75-78,共4页Chinese Journal of Luminescence

基　　金：国家自然科学基金(10874160);广东省科技计划基金(粤科计字[2007]173号);江门市科技计划基金(江财工[2007]28号)资助项目

摘　　要：利用溶胶-凝胶法在加入H3BO3助熔剂的环境下制备了掺杂不同量Mn2+的Zn2SiO4绿色发光粉。用X射线衍射仪和荧光光谱仪对其结构和光致发光性能进行了测试分析。结果表明:900℃还原气氛下退火后,样品呈现明显的绿色,Mn2+最佳掺杂摩尔分数为2%,当掺杂量超过2%后光谱发生强烈的浓度猝灭效应。最后,对这种物质的发光机理进行了分析。Different content of Mn2＋ doped Zn2SiO4 green phosphors were prepared by sol-gel method under the dopants of boron ions. The photoluminescent properties and structure of the samples were studied by fluo- rescence spectroscopy and X-ray diffraction, respectively. Results showed that, after annealed at 900℃ in reducing atmosphere, the sample exhibits a clear green color and the best doping mol concentration quenching effect is presented when the concentration of xMn2＋ 〉 2%, mechanism of the samples was also analyzed in this paper. fraction is 2%. A strong the possible luminescence

关 键 词：溶胶-凝胶 绿色发光粉 光致发光 掺杂 

分 类 号：O482.31[理学—固体物理]