摘要
利用热压成型工艺制备出荧光粒子不同掺杂浓度的柔性荧光树脂材料,并封装成对应LED器件。通过荧光粉激发光谱与热猝灭分析系统、光谱分析系统并基于米氏散射、几何光学等理论,研究了掺杂浓度对于材料和器件相关光色性能的影响规律。结果表明,掺杂浓度与散射强度和系数成正相关趋势,数值关系可以通过线性拟合方程进行表达(R2>0.99),光通量的变化存在最优值,色温从冷色温区10113 K逐渐向暖色温区3014 K进行转变,光色均匀性则随着浓度的升高而逐渐升高,综合光通量、色温和光色均匀度的综合评价,确定掺杂浓度12%为最优值,对应450 nm和554 nm的散射系数为8.06 mm^(-1)和8.93 mm^(-1),LED器件光通量为130.42 K,色温为3427 K。
A hot press molding process is used to prepare flexible fluorescent resin materials with different doping concentrations of fluorescent particles,and corresponding devices are prepared and pacbaged into corresponding LED chips.Through the fluorescence excitation device,spectrum analysis system and based on Mie scattering,geometric optics and other theories,the influence of doping concentration on the relative light and color properties of materials and devices is studied,and the mechanism is analyzed accordingly.The research results show that the doping concentration is positively correlated with the scattering intensity and coefficient.The numerical relationship can be expressed by a linear fitting equation(R 2>0.99).There is an optimal value for the change of luminous flux,and the color temperature gradually decreases from the cold color temperature region of 10113 K.The warm color temperature area is 3014 K,and the light color uniformity gradually increases with the increase of concentration.The comprehensive judgment of luminous flux,color temperature and light color uniformity determines that the doping concentration 12%as the optimal value,corresponding to 450 nm,scattering coefficients of and 554 nm are 8.06 mm^(-1) and 8.93 mm^(-1),the luminous flux of the LED device is 130.42 K,and color temperature is 3427 K.
作者
詹永东
周文
ZHAN Yongdong;ZHOU Wen(Jing Zhou Institute of Technology,Jingzhou 434020,China)
出处
《弹性体》
CAS
北大核心
2021年第5期46-50,共5页
China Elastomerics
基金
湖北省职业技术教育学会2020年重点课题(ZJGA202044)。
关键词
柔性荧光树脂
蒙特卡洛数值计算
光通量
色温
光色均匀度
flexible fluorescent resin
monte carlo numerical calculation
luminous flux
color temperature
light color uniformity
