在封装剂中加入ZrO2纳米粒子和红色荧光粉,提高白光led的效率和光质量

Yu-Cheng Lan, Chunliang Lin, Wei-Syuan Wang, Zheng-Yi Liu, B. Hsieh, Sheng-Lun Chen, Hui-Kai Huang
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引用次数: 3

摘要

在封装剂中加入ZrO2纳米粒子和红色荧光粉,提高了白光二极管的发光效率和光质量。ZrO2纳米颗粒可以增强封装剂在LED芯片上的光散射能力。在封装中掺杂ZrO2纳米粒子和YAG荧光粉(LED II)的光通量比常规掺杂YAG荧光粉封装(LED I)的光通量提高了7.7%,在LED芯片上共形YAG荧光粉和在封装中掺杂ZrO2纳米粒子的白光LED (LED III)的光通量比LED II提高了19.8%。在LED II的封装剂中掺入红色荧光粉,可使LED IV的CRI由47提高到90,R9由0提高到90。
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Improving efficiency and light quality of white LEDs by adding ZrO2 nano-particle and red phosphor in encapsulant
Efficiency and light quality of white light-emitting diodes (LEDs) were improved by adding ZrO2 nano-particle and red phosphor in encapsulant. ZrO2 nanoparticles can enhance the light scattering ability of encapsulant on LED chip. Doping ZrO2 nanoparticles with YAG phosphor into encapsulant package (LED II) luminous flux increase of 7.7 % compared conventional doping YAG phosphor package (LED I). Conformal YAG phosphor on LED chip and doping ZrO2 nanoparticles into encapsulant package of white LED (LED III) the luminous flux increase of 19.8 % compared LED II. Doping red phosphor into encapsulant of LED II produced LED IV, CRI can improved from 47 to 90 and R9 from 0 to 90.
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