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
出处
《发光学报》
EI
CAS
CSCD
北大核心
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
