紫外光通信用日盲型LED研究进展  

Recent Progress of Solar Blind Light Emitting Diodes for Ultraviolet Optical Wireless Communication Use

作　　者：郭春辉 孙雪娇[2] 郭凯 张晓娜 王兵[2,3] 魏同波 王申[1] 苏晋荣 闫建昌[2,3] 刘乃鑫[2,3] GUO Chunhui;SUN Xuejiao;GUO Kai;ZHANG Xiaona;WANG Bing;WEI Tongbo;WANG Shen;SU Jinrong;YAN Jianchang;LIU Naixin(College of Physics And Electronic Engineering,Shanxi Unversity,Taiyuan 030000,China;Research and Development Center for Semiconductor Lighting Technology,Institute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,China;Shanxi Zhongke Lu􀆳an Ultraviolet Optoelectronics Technology Co.,Ltd.,Changzhi 046000,China)

机构地区：[1]山西大学物理电子工程学院,山西太原030000 [2]中国科学院半导体研究所半导体照明研发中心,北京100083 [3]山西中科潞安紫外光电科技有限公司,山西长治046000

出　　处：《发光学报》2023年第10期1849-1861,共13页Chinese Journal of Luminescence

基　　金：2021年度山西省重点研发项目(202102030201007);国家重点研发计划(2022YFB3604804)。

摘　　要：紫外光通信在激光雷达、战术通信、航空航天内部安全通讯和片上集成通信等领域有着重要应用前景。传统的紫外光通信LED光源的调制带宽窄、输出光功率低和制造工艺复杂等缺点限制了它在长距离、高速率通信和片上集成通信领域的广泛应用。实验表明,增加单个器件发光面积可提升光输出功率,但增加的器件电容对带宽提升是不利的,因此紫外光通信LED未来的重要研究方向是提升并优化带宽的同时增加器件的光功率密度。UVC Micro-LED器件有着光提取效率高、时间常数小、载流子寿命短、调制速率快及工作电流密度高等出色性能,因此在通讯领域受到科研界和工业界的广泛青睐。本文总结了紫外LED、特别是UVC MicroLED的相关研究进展,并重点介绍了它们在光通信及其片上集成互联方面的应用。研究发现,对UVC MicroLED及其阵列制备与性能提升加强研究,是未来提升自由空间和片上互联紫外通信系统性能的最佳解决方案之一。Ultraviolet communication has extensive applications in laser radar,tactical communication,internal security communication in aerospace plane and on-chip integrated optical communication.Both of the bandwidth and light output power of the traditional deep ultraviolet communication LED were low,and the manufacturing process was complex,which limited their widespread application in long-distance,high-speed communication,and on-chip integrated optical communication fields.Experiments have shown that the increasing of the light emitting area of single device can improve the light output power,but the device capacitance has a negative effect on the bandwidth.Therefore,an important research direction for ultraviolet communication LEDs in the future is to improve the bandwidth and the optical power density of the devices simultaneously.UVC Micro-LEDs with higher light extraction efficiency,lower time constant,shorter carrier lifetime,faster modulated rate and higher current density than traditional LED have been widely favored by the scientific and industrial communities.This paper summarizes the UV LED,especially UVC Micro-LEDs related research progress,and their applications in optical communication and integration on a chip interconnection.It is found that deepening study on the preparation and performance improvement of UVC Micro-LEDs and their arrays will be one of the best solutions for improving the performance of free space and on-chip integrated ultraviolet communication systems in the future.

关 键 词：紫外光通信 微尺寸发光二极管 调制速率 片内集成光通信 光提取效率 

分 类 号：TN312.8[电子电信—物理电子学]