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Vapour-deposited perovskite light-emitting diodes

Nature Reviews Materials volume 9, pages 282–294 (2024)Cite this article

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Abstract

Perovskite light-emitting diodes (PeLEDs) have garnered worldwide attention as a promising technology for the next generation of display devices. Although initial reports focused on laboratory-scale spin-coating techniques, rapid advances have prompted researchers to explore pathways for their scaled manufacture. Drawing inspiration from the success of organic LEDs, the community has begun to look at vapour deposition to build reliable PeLED displays. This Perspective article examines the development of vapour-deposited PeLEDs, particularly emphasizing the underlying factors that limit their performance compared with their solution-processed counterparts. We offer routes to improve device performance, including optimizing film quality and engineering device architecture, and summarize potential applications for vapour-deposited PeLEDs. Finally, we outline development opportunities in this evolving field.

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Fig. 1: Current status of PeLED, emphasizing the vapour-deposition technique.
Fig. 2: Schematic illustrating the vapour-deposition process.
Fig. 3: Strategies to enhance radiative recombination.
Fig. 4: Strategies used to suppress trap-assisted non-radiative recombination.
Fig. 5: Device engineering of vapour-deposited PeLEDs.
Fig. 6: Prototype applications of vapour-deposited PeLEDs.

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Acknowledgements

The authors acknowledge support from the National Natural Science Foundation of China (62322505, 62374069, 62250003, 62104077), the National Key Research and Development Program of China (2021YFB3501800) and the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (grant number NRF-2022R1I1A1A01061848).

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Authors and Affiliations

  1. Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, China

    Jiajun Luo, Jinghui Li, Runda Guo & Jiang Tang

  2. Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada

    Luke Grater & Edward Sargent

  3. Physics Department, Faculty of Science, Universiti Teknologi Malaysia, Johor Bahru, Malaysia

    Abd. Rashid bin Mohd Yusoff

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J.L., A.R. and J.T. conceived and wrote the first draft. All authors contributed to the manuscript discussion and revisions.

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Luo, J., Li, J., Grater, L. et al. Vapour-deposited perovskite light-emitting diodes. Nat Rev Mater 9, 282–294 (2024). https://doi.org/10.1038/s41578-024-00651-8

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