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Flexible perovskite light-emitting diodes: Progress, challenges and perspective

柔性钙钛矿发光二极管: 进展, 挑战与展望

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Abstract

Metal halide perovskites with excellent optoelectronic properties and good ductile properties have emerged as promising materials suitable for flexible optoelectronics that can be integrated into portable and wearable display devices, showing great potential for the next generation displays and lighting. Currently, encouraging progress has been witnessed in the field of flexible perovskite light-emitting diodes (PeLEDs), with maximal external quantum efficiencies (EQEs) of over 28%. Herein, we summarize the major breakthroughs in recent years, with the aim of providing a comprehensive review and facilitating the further development of flexible PeLEDs. In addition, the main challenges that hinder the performance and commercialization of flexible PeLED devices are discussed. Finally, a brief perspective and conclusion toward the future opportunities and applications of flexible PeLEDs are provided.

摘要

金属卤化物钙钛矿具有优异的光电性能和良好的延展性, 是一种很有前途的适合于柔性光电子器件的材料, 并且可以集成到便携式和可穿戴式的显示设备中, 在下一代显示和照明方面展现出巨大的潜力. 目前, 柔性钙钛矿发光二极管领域已经取得了令人鼓舞的进展, 最大外量子效率已经超过28%. 在此, 我们总结了近年来在柔性钙钛矿发光二极管领域取得的主要突破, 旨在提供一个全面的回顾, 以促进柔性钙钛矿发光二极管的进一步发展. 此外, 我们还讨论了阻碍柔性钙钛矿发光二极管器件性能和商业化的主要挑战. 最后, 我们对柔性钙钛矿发光二极管的未来机遇和应用前景进行了展望和总结.

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Acknowledgements

This work was supported by the National Natural Science Foundation of China (52073197 and 62075148), the Natural Science Foundation of Jiangsu Province (BK20201413 and BK20211314), Suzhou Key Laboratory of Functional Nano & Soft Materials, Collaborative Innovation Center of Suzhou Nano Science & Technology, the 111 Project, the Joint International Research Laboratory of Carbon-Based Functional Materials and Devices, and Soochow University Tang Scholar.

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Authors and Affiliations

  1. Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, China

    Jin-Tao Wang  (王金涛), Shu-Zhuang Wang  (王树状), Yu-Hang Zhou  (周宇航) & Zhao-Kui Wang  (王照奎)

  2. College of Energy, Soochow Institute for Energy and Materials Innovations, Soochow University, Suzhou, 215006, China

    Yan-Hui Lou  (娄艳辉)

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  1. Jin-Tao Wang  (王金涛)
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  2. Shu-Zhuang Wang  (王树状)
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Contributions

Wang JT and Wang ZK conceived the idea for this review. Wang JT collected the references, organized the images, and wrote the entire manuscript; Wang SZ, Zhou YH, and Lou YH modified the manuscript and participated in the discussion; all the authors contributed to the general discussion. Lou YH and Wang ZK supervised the project.

Corresponding authors

Correspondence to Yan-Hui Lou  (娄艳辉) or Zhao-Kui Wang  (王照奎).

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Conflict of interest

The authors declare that they have no conflict of interest.

Jin-Tao Wang is pursuing his bachelor of engineering degree at the College of Nano Science & Technology (CNST), Soochow University, China. In 2020, he joined the research group of Prof. Zhao-Kui Wang as an undergraduate trainee for scientific research training at the Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University. His primary research interest is perovskite light-emitting diodes.

Yan-Hui Lou received her PhD degree in nano and novel matter science from the University of Toyama, Japan, in 2012. After working at the University of Toyama as a Japan Society for the Promotion of Science (JSPS) research fellow from 2012 to 2014, she joined Soochow Institute for Energy and Materials Innovations, Soochow University, as an associate professor. Since 2021, she has been a full professor at Soochow University. Her main research interest focuses on organic and inorganic/organic hybrid materials for application in solar cells.

Zhao-Kui Wang received his PhD degree in nano and novel matter science from the University of Toyama, Japan, in 2011. After working at the University of Toyama as a JSPS research fellow from 2011 to 2013, he joined the Institute of FUNSOM, Soochow University, as an associate professor. Since 2017, he has been a full professor at Soochow University. His main research interests lie in organic and inorganic/organic hybrid materials and devices, focusing on solar cells and light-emitting diodes (LEDs).

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Wang, JT., Wang, SZ., Zhou, YH. et al. Flexible perovskite light-emitting diodes: Progress, challenges and perspective. Sci. China Mater. 66, 1–21 (2023). https://doi.org/10.1007/s40843-022-2197-4

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