展陈空间智能控制用荧光玻璃制备及光学性能测试研究  

Preparation and application of fluorescent glass for intelligent control of lighting in exhibition space

作　　者：任睿 REN Rui(Jiangsu Suhao Aitao Cultural Industry Co.,Ltd.,Nanjing 211106,China;Jiangnan University,Wuxi 214122,Jiangsu China)

机构地区：[1]江苏苏豪爱涛文化有限公司,江苏南京211106 [2]江南大学,江苏无锡214122

出　　处：《粘接》2023年第6期188-191,共4页Adhesion

摘　　要：针对传统LED封装材料导热性能较差问题,提出一种用于LED封装的荧光玻璃制备方法。试验对荧光玻璃的制备条件进行优化,然后对荧光玻璃的光学性能和应用性能进行研究。结果表明:在LuAG:Ce荧光粉质量分数为8%,CASN:Eu^(2+)荧光粉掺杂质量分数为20%, LuAG:Ce荧光玻璃厚度为1.0 mm的条件下制备的复合荧光玻璃光学性能最佳。此时,荧光玻璃的透过率约为70%,温度从室温上升至473 K时,荧光玻璃荧光强度降低至室温(298 K)时的79.6%,发光光效为90.65l m/W,色温为3 289 K,显色指数为91.6,表现出良好的透过性、热稳定性和光电性能。将复合荧光玻璃用于大功率COB器件的封装,可封装成大功率COB器件;通过对CASN:Eu^(2+)荧光粉掺杂浓度和荧光玻璃厚度进行调节,可调节LED色度,对白光LED光电性能进行有针对性的改善。A fluorescent glass preparation method for LED packaging is proposed to address the issues of poor thermal conductivity of traditional LED packaging materials.The experiment first optimized the preparation conditions of fluorescent glass,and then studied the optical and application properties of fluorescent glass.The experimental results showed that the composite fluorescent glass prepared under the conditions of LuAG:Ce fluorescent powder concentration of 8%,CASN:Eu^(2+)fluorescent powder doping concentration of 20%,and LuAG:Ce fluorescent glass thickness of 1.0 mm had the best optical performance.At this point,the transmittance of the fluorescent glass was about 70%.When the temperature rised from room temperature to 473 K,the fluorescence intensity of the fluorescent glass decreased to 79.6%at room temperature(298 K),with a luminous efficiency of 90.65lm/W,a color temperature of 3289 K,and a color rendering index of 91.6.It exhibited good transmittance,thermal stability,and optoelectronic properties.The composite fluorescent glass was used for packaging high-power COB devices,and the large-sized composite fluorescent glass sheet could be packaged into high-power COB devices.By adjusting the concentration of CASN:Eu^(2+)phosphor doping and the thickness of the fluorescent glass,the LED chromaticity could be adjusted,and the photoelectric performance of white light LEDs could be targeted and improved,which could be applied in the field of high-power LEDs.

关 键 词：展陈空间 LED封装材料 封固胶封装 荧光玻璃 光学性能 

分 类 号：TQ577.13[化学工程—精细化工] TQ171.7