Large-area fabrication:The next target of perovskite light-emitting diodes

• 作者: Hang Su Kun Zhu Jing Qin Mengyao Li Yulin Zuo Yunzheng Wang Yinggang Wu Jiawei Cao Guolong Li
• 来源期刊: 中国物理B（英文版）
• 年，卷（期）: 2021,（8）
• 所属期刊栏目: REVIEW
• 页码范围: 147-160
• 页数: 14页
• 语种: 英文
• DOI: 10.1088/1674-1056/ac05a4

摘要

Perovskite materials show exciting potential for light-emitting diodes (LEDs) owing to their intrinsically high pho-toluminescence efficiency and color purity.The research focusing on perovskite light-emitting diodes (PeLEDs) has ex-perienced an exponential growth in the past six years.The maximum external quantum efficiency of red,green,and blue PeLEDs has surpassed 20％,20％,and 10％,respectively.Nevertheless,the current PeLEDs are still in the laboratory stage,and the key for further development of PeLEDs is large-area fabrication.In this paper,we briefly discuss the similarities and differences between manufacturing high-quality and large-area PeLEDs and perovskite solar cells.Especially,the gen-eral technologies for fabricating large-area perovskite films are also introduced.The effect of charge transport layers and electrodes on large-area devices are discussed as well.Most importantly,we summarize the advances of large-area (active area ≥ 30 mm2) PeLEDs reported since 2017,and describe the methods for optimizing large-area PeLEDs reported in the literature.Finally,the development perspective of PeLEDs is presented for the goal of highly efficient and large-area PeLED fabrication.It is of great significance for the application of PeLEDs in future display and lighting.