中国物理B ›› 2021, Vol. 30 ›› Issue (8): 88502-088502.doi: 10.1088/1674-1056/ac05a4

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

Hang Su(苏杭)1, Kun Zhu(朱坤)1, Jing Qin(钦敬)1, Mengyao Li(李梦瑶)1, Yulin Zuo(左郁琳)1, Yunzheng Wang(王允正)1, Yinggang Wu(吴迎港)1, Jiawei Cao(曹佳维)2, and Guolong Li(李国龙)1,†   

  1. 1 Key Laboratory of Photovoltaic Materials, Ningxia University, Yinchuan 750000, China;
    2 Advanced Computer Science, University of Leeds, Leeds LS2 9JT, UK
  • 收稿日期:2021-04-06 修回日期:2021-05-06 接受日期:2021-05-27 出版日期:2021-07-16 发布日期:2021-08-02
  • 通讯作者: Guolong Li E-mail:liglo@163.com
  • 基金资助:
    Project supported by the Ningxia Key Project of Research and Development Plan (Grant No. 2020BDE03013).

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

Hang Su(苏杭)1, Kun Zhu(朱坤)1, Jing Qin(钦敬)1, Mengyao Li(李梦瑶)1, Yulin Zuo(左郁琳)1, Yunzheng Wang(王允正)1, Yinggang Wu(吴迎港)1, Jiawei Cao(曹佳维)2, and Guolong Li(李国龙)1,†   

  1. 1 Key Laboratory of Photovoltaic Materials, Ningxia University, Yinchuan 750000, China;
    2 Advanced Computer Science, University of Leeds, Leeds LS2 9JT, UK
  • Received:2021-04-06 Revised:2021-05-06 Accepted:2021-05-27 Online:2021-07-16 Published:2021-08-02
  • Contact: Guolong Li E-mail:liglo@163.com
  • Supported by:
    Project supported by the Ningxia Key Project of Research and Development Plan (Grant No. 2020BDE03013).

摘要: Perovskite materials show exciting potential for light-emitting diodes (LEDs) owing to their intrinsically high photoluminescence efficiency and color purity. The research focusing on perovskite light-emitting diodes (PeLEDs) has experienced 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 general 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.

关键词: perovskite light-emitting diodes, large-area fabrication, film optimization, manufacture technologies

Abstract: Perovskite materials show exciting potential for light-emitting diodes (LEDs) owing to their intrinsically high photoluminescence efficiency and color purity. The research focusing on perovskite light-emitting diodes (PeLEDs) has experienced 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 general 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.

Key words: perovskite light-emitting diodes, large-area fabrication, film optimization, manufacture technologies

中图分类号:  (Light-emitting devices)

  • 85.60.Jb
81.07.Pr (Organic-inorganic hybrid nanostructures) 81.10.Dn (Growth from solutions)