摘要
Micro-LED具有高分辨率、高色域、高稳定性等优点,在近眼显示领域具有广阔的应用前景。然而,Mi-cro-LED存在着巨量电致发光检测和巨量金属键合两大技术瓶颈。本文提出了一种单端载流子注入的Micro-LED工作模式,并制备了一种基于该工作模式的Micro-LED器件,即单注入型Micro-LED。通过实验和仿真研究单注入型Micro-LED的工作过程,探究其工作机理。研究了单注入型Micro-LED在正弦交流电下的电流-驱动电压关系、电流-驱动频率关系、亮度-驱动频率关系,以及能带的周期性变化规律,并提出单注入型Micro-LED的载流子输运模型。最后,展示了单注入模式在垂直结构Micro-LED检测领域的应用,为Micro-LED检测提供了新思路。
Micro light-emitting diode(Micro-LED),with many advantages such as high-resolution,high color gamut,and high stability,has broad prospects for near-eye display.However,two major technical issues in Micro-LED need to be solved,including mass electroluminescence detection and mass metal bonding.In this work,a working mode for Micro-LED with single-terminal carrier-injection is proposed,and a single-injection type Micro-LED related to the working mode is fabricated.The working process is studied by experiments and simulations in order to explore the working mechanisms.The current-voltage,current-frequency,brightness-frequency relationship and the periodic variation of the energy band of single-injection type Micro-LED under sinusoidal alternating current are studied.Moreover,the carrier transport model of single-injection Micro-LED is proposed.Finally,the application of single-injection mode used in the detection of vertical structure Micro-LED is demonstrated,which provides new ideas for Micro-LED detection.
作者
李俊龙
李文豪
苏昊
邱佳雯
王堃
张永爱
周雄图
吴朝兴
郭太良
LI Jun-long;LI Wen-hao;SU Hao;QIU Jia-wen;WANG Kun;ZHANG Yong-ai;ZHOU Xiong-tu;WU Chao-xing;GUO Tai-liang(College of Physics and Information Engineering,Fuzhou University,Fuzhou 350108,China;Fujian Science&Technology Innovation Laboratory for Optoelectronic Information of China,Fuzhou 350108,China)
出处
《发光学报》
EI
CAS
CSCD
北大核心
2022年第12期1991-2000,共10页
Chinese Journal of Luminescence
基金
国家重点研发计划(2021YFB3600404)资助项目。
关键词
Micro-LED
单端载流子注入
电致发光检测
交流电
Micro-LED
single-terminal carrier-injection
electroluminescence detection
alternating current
