ISSN: 0256-1115 (print version) ISSN: 1975-7220 (electronic version)
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English
Conflict of Interest
In relation to this article, we declare that there is no conflict of interest.
Publication history
Received June 10, 2024
Accepted July 21, 2024
articles This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Advances in Flexible, Foldable, and Stretchable Quantum Dot Light-Emitting Diodes: Materials and Fabrication Strategies

Department of Chemical and Biological Engineering , Gachon University 1Center for Nanoparticle Research, Institute for Basic Science (IBS) 2School of Chemical and Biological Engineering, Institute of Chemical Processes , Seoul National University 3Department of Systems Biotechnology , Chung-Ang University 4Department of Semiconductor Engineering , Gachon University ,
Korean Journal of Chemical Engineering, December 2024, 41(13), 3517-3543(27), https://doi.org/10.1007/s11814-024-00236-9

Abstract

Deformable light-emitting devices, capable of maintaining consistent light emission even under mechanical deformations,

represent a cornerstone for next-generation human-centric electronics. Quantum dot light-emitting diodes (QLEDs), leveraging

the electroluminescence (EL) of colloidal quantum dots (QDs), show exceptional promise in this domain. Their superior

advantages, such as excellent color purity, high luminous effi ciency, slim form factor, and facile fabrication on various soft

substrates, position them as prime candidates for deformable EL devices. This review explores recent advancements in

deformable QLEDs, with a particular focus on material engineering and fabrication strategies. We begin by introducing

various types of QDs and the operational principles of QLEDs, along with summarizing performance enhancements in

reported deformable devices. Next, we categorize device structures based on the direction of light emission. We then discuss

representative methods for patterning QD thin fi lms on fl exible substrates to fabricate full-color QLEDs. Additionally, we

highlight fabrication strategies for deformable QLEDs with unconventional form factors, including fl exible, foldable, fi bertype,

and stretchable devices, and their potential applications. We conclude this review with a brief outlook on the future

of this technology.

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