LED光取出技术研究进展  

Development of research on optical extraction techniques of LED

作　　者：田大垒[1] 关荣锋[1] 赵文卿[1] 王杏[1] 

机构地区：[1]河南理工大学材料科学与工程学院,河南焦作454003

出　　处：《电子元件与材料》2008年第4期42-44,共3页Electronic Components And Materials

基　　金：河南省重点科技攻关资助项目(No.072102240027);河南理工大学博士基金资助项目(No.648602);河南理工大学研究生学位论文创新基金资助项目(No.644005)

摘　　要：大功率白光LED目前存在着光取出效率不高的问题。介绍了提高白光LED光取出效率的主要方法与途径,包括光子晶体,表面粗化,倒装芯片,二次光学设计以及荧光粉远离。这些技术不同程度提高了LED的光取出效率,是解决其发光效率不高的有效途径。Optical extraction efficiency is not high in high-power white LED, Main methods and approaches were introduced in improving optical extraction efficiency of white LED, including photonic crystals, surface roughening, secondary optic design, flip chip, and remote phosphors. These techniques have increased optical extraction efficiency of LED, and are effective approaches to avoid the low-luminous efficiency.

关 键 词：电子技术 LED 综述 光取出 

分 类 号：TN312.8[电子电信—物理电子学]