有机硅基高分子荧光树脂及其光谱发射特性研究  

Research on Spectral Emission Properties of Organic Silicon Based Fluorescent Polymer Resin

作　　者：颜延宁[1] 朱斌[1] 刘长春[1] 

机构地区：[1]江苏食品药品职业技术学院健康学院,江苏淮安223005

出　　处：《塑料科技》2017年第7期30-35,共6页Plastics Science and Technology

摘　　要：通过高温模压成型的方法制备了有机硅基高分子荧光树脂和白光发光二极管,通过扫描电子显微镜、荧光分光光度计和荧光光谱分析系统对荧光树脂和白光发光二极管的光谱特性进行了表征。结果表明:随着荧光树脂中绿色荧光材料质量分数的增加,荧光树脂的荧光光谱发生蓝移,带宽变窄,相对应的色坐标满足线性方程y=-0.611x+0.7692,同时荧光强度和荧光转换效率均表现出增长的趋势;当绿色和红色荧光材料的质量比为8:1时,所制白光发光二极管色彩还原指数高达93.7,色坐标靠近纯正白光点,具有较高的光品质,且在不同电流驱动下,荧光树脂表现出稳定的光谱发射特性,峰形未发生变化,其中白光发光二极管和荧光树脂的光功率均随着电流的增大呈线性增加趋势。研究结果显示,荧光树脂是白光发光二极管重要的组成材料之一,其光谱特性直接决定了白光发光二极管性能的优劣。The silicone based fluorescent polymer resin and white light emitting diode were prepared through high temperature molding method. And then spectral characteristics of white light emitting diode and fluorescent resin were characterized by scanning electron microscopy, fluorescence spectrophotometer and fluorescence spectroscopy system. The results show that with the increasing proportion of green phosphor in fluorescent resin, blue shift occurs to the fluorescence spectrum of fluorescent resin, the bandwidth becomes narrow, and the corresponding color coordinates satisfies the linear equation y=-0.611x＋0.7692, the fluorescence intensity and fluorescence conversion efficiency show a increasing trend; when the proportion of green and red phosphor is 8：1, the color reduction index of the obtained white light emitting diode up to 93.7, closing to the pure white color coordinates, and with high quality. In different driving current, the fluorescent resin exhibites stable spectral emission characteristics, emission peak does not change, the optical power of white light emitting diode and fluorescent resin both increase with the increasing of current. Study results indicate that fluorescent resin is one of the most important materials of white light emitting diode, the spectral spectrum characteristics of fluorescent resin directly determines the performance of the white light emitting diode.

关 键 词：有机硅树脂 高分子荧光聚合物 荧光材料 白光发光二极管 色彩还原指数 光功率 

分 类 号：TQ324.21[化学工程—合成树脂塑料工业]