白光发光二极管及其集成光源模块的研究  

Study of the White Light-emitting Diode and Its Integrated Lighting Source

作　　者：张哲娟[1] 杨介信 张燕萍[1] 孙卓[1] 陈奕卫[1] 

机构地区：[1]华东师范大学纳米功能材料与器件应用研究中心,上海200062 [2]上海纳晶科技有限公司,上海200062

出　　处：《半导体光电》2007年第4期482-486,共5页Semiconductor Optoelectronics

基　　金：上海市纳米专项项目(0552nm006);上海浦江人才专项项目(05PJ14320);光科技专项项目(06DZ11404);2005世博专项项目(05dz05803);上海市经委高新技术产业科技开发项目

摘　　要：采用GaN基蓝色发光芯片为激发源,结合YAG荧光粉封装成白光发光二极管(W-LED)。对W-LED的光电特性及其在照明光源中的应用条件作了深入的研究,测试了以串联形式集成的W-LED光源模块的功率以及发光效率。结果表明W-LED的光电特性决定了W-LED集成为照明光源的必备条件:用于集成的W-LED光电特性一致性好,且W-LED集成光源配备有稳流功能的驱动电路,才能发挥W-LED作为照明光源的节能、高可靠和稳定性等优势。The white light emitting diodes （W-LEDs） were fabricated by using InGaN-based blue LED chip as primary light source and YAG phosphors as luminescence conversion materials. The current illumination characteristic of W-LED, the power efficiency of the integrated lighting source were studied and discussed for the practical application. Luminance performances of the W-LED lamp integrated in series were studied. The preferable applied qualifications are supplied as follows： the uniformity of the W-LED devices and the stable current supplied by drive circuit are should be guaranteed, showing that the W-LED lamp processes much lower power consumption and longer lifetime.

关 键 词：白光发光二极管(W—LED) 光电特性 集成光源模块 

分 类 号：TN312.8[电子电信—物理电子学]