摘要
以ZnS(荧光纯)与MnCl2(分析纯)为原料通过固相反应法,高温烧结制成ZnS:Mn荧光粉.采用化学共沉淀法在ZnS:Mn荧光粉表面包覆上一层透明的SnO2:Sb薄膜来增加材料的导电性.用数字万用表和自制的测量盒测量了粉体的电阻.试验并讨论了包覆层中不同的Sb/Sn摩尔比,包覆量(Sn/Zn),热处理时间以及热处理温度对粉体电阻率的影响.
ZnS： Mn phosphor particles were prepared by solid reaction with ZnS and MnCl2 ： 4H2O. Surface modification of the ZnS： Mn powders was carried out by coating transparent conductive films of Sb - doped SnO2, formed by homogeneous phase co - precipitation and heat treatment process. The effects of Sb/Sn molar percent, coating amount, heat treating temperature and time on conductivity of the coated ZnS： Mn phosphors have been investigated. The coated phosphors were characterized by x- ray diffraction （XRD）measurements.
出处
《山东师范大学学报（自然科学版）》
CAS
2006年第3期67-69,共3页
Journal of Shandong Normal University(Natural Science)
基金
国家自然科学基金(60071006)
山东省自然科学基金(2002G11)资助项目
关键词
ZnS:Mn荧光粉
固相反应
化学共沉淀
表面包覆
ZnS：Mn phosphor
solid reaction
homogeneous phase co- precipitation
surface coating
