交流发光二极管的研究进展

潘飞; 戴一仲; 李明光; 陈润锋

doi:10.37188/CJLCD.2020-0265

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交流发光二极管的研究进展

有机发光显示材料与器件 | 更新时间：2021-02-01

- 交流发光二极管的研究进展
- Advances in alternating current-driven light-emitting devices
- 液晶与显示 2021年36卷第1期页码：21-38
- 作者机构：
  
  南京邮电大学有机电子与信息显示国家重点实验室培育基地, 江苏省生物传感材料与技术重点实验室, 信息材料与纳米技术研究院, 江苏先进生物与化学制造协同创新中心, 江苏南京 210023
- 作者简介：
  
  [ "潘飞(1996-)，男，湖北大冶人，硕士研究生，2018年于南京邮电大学获得学士学位，主要从事有机电致发光器件的结构设计与制备的研究。E-mail:1218063715@njupt.edu.cn" ]
  [ "李明光(1987-)，男，山东济宁人，博士，讲师，2016年于中国科学院长春应用化学研究所获得博士学位，主要从事有机/钙钛矿光电功能器件方面的研究。E-mail: iammgli@njupt.edu.cn" ]
  [ "陈润锋(1977-)，男，江苏溧阳人，博士，教授，2006年于复旦大学获得博士学位，主要从事有机半导体材料与功能器件的研究工作。E-mail:iamrfchen@njupt.edu.cn" ]
- 基金信息：
  
  国家自然科学基金(61704089);国家自然科学基金(61875090);国家自然科学基金(21674049)
- DOI：10.37188/CJLCD.2020-0265
  中图分类号： TP394.1;TN383.1
- 收稿日期：2020-10-09，
  
  录用日期：2020-11-5，
  
  纸质出版日期：2021-01
- 稿件说明：
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潘飞, 戴一仲, 李明光, 等. 交流发光二极管的研究进展[J]. 液晶与显示, 2021,36(1):21-38.

Fei PAN, Yi-zhong DAI, Ming-guang LI, et al. Advances in alternating current-driven light-emitting devices[J]. Chinese journal of liquid crystals and displays, 2021, 36(1): 21-38.
潘飞, 戴一仲, 李明光, 等. 交流发光二极管的研究进展[J]. 液晶与显示, 2021,36(1):21-38. DOI： 10.37188/CJLCD.2020-0265.

Fei PAN, Yi-zhong DAI, Ming-guang LI, et al. Advances in alternating current-driven light-emitting devices[J]. Chinese journal of liquid crystals and displays, 2021, 36(1): 21-38. DOI： 10.37188/CJLCD.2020-0265.

摘要

随着光电信息产业的高速发展，发光二极管(LEDs)作为固态照明和显示设备的核心单元，受到了研究人员的广泛关注。根据驱动方式的不同，一般将LEDs分为恒压或直流驱动的LEDs(DC-LEDs)以及交流驱动的LEDs(AC-LEDs)。与DC-LEDs相比，AC-LEDs不仅可以避免载流子大量累积所导致的亮度和效率降低，并且无需变压与整流系统即可接入交流电系统中，大幅简化了器件集成工艺，因此AC-LEDs展现出更好的应用前景。基于此，本文介绍了AC-LEDs的发光机制，总结了包括双绝缘、单绝缘、双注入、串联和平行结构在内的几种常见结构类型；综述了各类AC-LEDs的研究进展，探讨了各种结构对器件性能的影响，发现器件内部载流子的传输平衡和绝缘层的高介电性质是实现AC-LEDs高性能的关键因素；本文最后探讨了AC-LEDs所面临的机遇与挑战。

Abstract

With the rapid development of the optoelectronic information industry

light-emitting diodes (LEDs) as the core unit of solid-state lighting and display equipment

have been widely concerned by researchers. According to the different driving modes

LEDs can be generally divided into constant voltage or direct current driven LEDs (DC-LEDs) and alternating current driven LEDs (AC-LEDs). Compared to DC-LEDs

AC-LEDs can effectively avoid the charge accumulation for the improved device efficiency and operational lifetime. In addition

AC-LEDs can be readily connected to AC power systems without voltage transformation and rectification systems

which greatly simplifies the device integration process with better practical application prospects. This review firstly introduces the light-emitting mechanism of AC-LEDs and summarizes several AC-LED device structures including double-insulation

single-insulation

double-injection

tandem and parallel structures. Then

the recent advances of various AC-LEDs are presented and the influences of various factors on device performance are discussed. It is found that the balanced carrier transport and the high dielectric properties of insulator are two key factors in achieving high-performance AC-LEDs. Finally

the opportunities and challenges for the future development of AC-LEDs are discussed.

关键词

Keywords

references

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