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Toward Full-Color Electroluminescent Quantum Dot Displays

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Title
Toward Full-Color Electroluminescent Quantum Dot Displays
Author(s)
Yang, Jiwoong; Choi, Moon Kee; Yang, U Jeong; Kim, Seo Young; Young Seong Kim; Jeong Hyun Kim; Dae-Hyeong Kim; Taeghwan Hyeon
Publication Date
2021-01
Journal
NANO LETTERS, v.21, no.1, pp.26 - 33
Publisher
AMER CHEMICAL SOC
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.
URI
https://pr.ibs.re.kr/handle/8788114/9874
DOI
10.1021/acs.nanolett.0c03939
ISSN
1530-6984
Appears in Collections:
Center for Nanoparticle Research(나노입자 연구단) > 1. Journal Papers (저널논문)
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