摘要
采用燃烧法制备Na5Eu(MoO4)4红色荧光粉,并通过XRD,TEM研究了粉体的结构和形貌特征.与文献报道的高温固相法合成的粉体相比,在紫外激发波长395 nm下,发出极强的红光同时显示出合适的色度坐标为(x=0.673,y=0.327),因此它可被应用于近紫外InGaN基白光LED芯片.
Red phosphor NasEu（ MoO4 ）4 was prepared by the combustion method, and its morphology and structure were measured by the X- ray diffraction （XRD） and scanning electronic microscopy （SEM）. Its photo -luminescent properties were investigated and compared with that prepared by the high temperature solid state reaction method. The samples prepared by the combustion method show the intense red light emission under 395nm excitation with the appropriate CIE chromaticity coordinates （x = 0. 673, y = 0. 327 ） ; therefore it can be applicable to near UV InGaN chip -based white light -emitting diodes.
出处
《云南民族大学学报（自然科学版）》
CAS
2012年第5期339-341,共3页
Journal of Yunnan Minzu University:Natural Sciences Edition
基金
国家自然科学基金(21001092)
云南省教育厅科学研究基金(2010Y424)
云南民族大学绿色化学与功能材料研究省创新团队(2011HC008)
关键词
燃烧法
荧光粉
发光
发光二极管
combustion method
phosphors
luminescence
light emitting diodes
