Overall
- Language
- English
- Conflict of Interest
- In relation to this article, we declare that there is no conflict of interest.
- Publication history
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Received June 10, 2024
Accepted July 21, 2024
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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
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.