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Toward Full-Color Electroluminescent Quantum Dot Displays

Title
Toward Full-Color Electroluminescent Quantum Dot Displays
Authors
Yang, JiwoongChoi, Moon KeeYang, U JeongKim, Seo YoungKim, Young SeongKim, Jeong HyunKim, Dae-HyeongHyeon, Taeghwan
DGIST Authors
Yang, Jiwoong
Issue Date
2021-01
Citation
Nano Letters, 21(1), 26-33
Type
Article
Article Type
Review
Author Keywords
quantum dotlight-emitting diodefull-color displayhigh-resolution patterningelectroluminescence
Keywords
LIGHT-EMITTING-DIODESHIGH-EFFICIENCYHIGHLY EFFICIENTNANOCRYSTALSPATTERNSLEDS
ISSN
1530-6984
Abstract
Colloidal quantum dots (QDs) exhibit unique characteristics such as facile color tunability, pure color emission with extremely narrow bandwidths, high luminescence efficiency, and high photostability. In addition, quantum dot light-emitting diodes (QLEDs) feature bright electroluminescence, low turn-on voltage, and ultrathin form factor, making them a promising candidate for next-generation displays. To achieve the overarching goal of the full-color display based on the electroluminescence of QDs, however it is essential to enhance the performance of QLEDs further for each color (e.g., red, green, and blue; RGB) and develop novel techniques for patterning RGB QD pixels without cross-contamination. Here, we present state-of-the-art material, process, and device technologies for full-color QLED-based displays. First, we highlight recent advances in the development of efficient red-, green-, and blue-monochromatic QLEDs. In particular, we focus on the progress of heavy-metal-free QLEDs. Then, we describe patterning techniques for individual RGB QDs to fabricate pixelated displays. Finally, we briefly summarize applications of such QLEDs, presenting the possibility of full-color QLED-based displays. © 2020 American Chemical Society.
URI
http://hdl.handle.net/20.500.11750/12988
DOI
10.1021/acs.nanolett.0c03939
Publisher
American Chemical Society
Related Researcher
  • Author Yang, Jiwoong NanoMaterials Laboratory
  • Research Interests Quantum Dots; Nanocrystals; Displays; Solar Energy; TEM; Photocatalyst
Files:
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Collection:
ETC1. Journal Articles


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