利用介质光子晶体提高红光发光二极管的光通量的研究  

Research of dielectric photonic crystal on red LED to increase luminous flux

作　　者：徐昕伟[1] 崔碧峰[1] 朱彦旭[1] 郭伟玲[1] 李伟国[1] 

机构地区：[1]北京工业大学光电子技术实验室,北京100124

出　　处：《物理学报》2012年第15期295-299,共5页Acta Physica Sinica

基　　金：国家高技术研究发展计划(863)项目(批准号:2009AA03A1A3);国家科技支撑计划(批准号:2011BAE01B14);国家自然科技基金(批准号:11002013201102);北京市教委项目(批准号:KM201210005004)资助的课题~~

摘　　要：本文利用光子晶体的光栅衍射原理,在发光二极管(Iight emitting diode,LED)上制作了光子晶体结构以提高出光效率.在红光LED器件中引入了SiO_2层的介质光子晶体结构,并进行了相应的理论分析和实验验证.结果表明:介质光子晶体结构对于提高红光LED器件的光提取效率有显著效果,引入介质光子晶体后,红光LED的光通量比普通LED增加了26%.According to the photon grating diffraction principle,the extraction efficiency of LED with photonic crystal can be improved. In this paper,the dielectric photonic crystal is introduced into the SiO2 layer of the red LED to improve the extraction efficiency. The theoretical analyses and experimental results show that the LED with dielectric photonic crystal can well achieve the extraction efficiency.The luminous flux of new type LED is improved by 26%compared with the normal red LED.

关 键 词：LED 介质光子晶体 光通量 

分 类 号：TN312.8[电子电信—物理电子学]