Toward Full-Color Electroluminescent Quantum Dot Displays

• DOI: 10.1021/acs.nanolett.0c03939
• Publication Date: 2020-12-01T20:25:03Z
• Authors: Jiwoong Yang; Moon Kee Choi; U Jeong Yang; Seo Young Kim; Young Seong Kim; Jeong Hyun Kim; Dae-Hyeong Kim; Taeghwan Hyeon
• Keywords: RGB color model; Monochromatic color; High color

Colloidal quantum dots (QDs) exhibit unique characteristics such as facile color tunability, pure emission with extremely narrow bandwidths, high luminescence efficiency, and photostability. In addition, dot light-emitting diodes (QLEDs) feature bright electroluminescence, low turn-on voltage, ultrathin form factor, making them a promising candidate for next-generation displays. To achieve the overarching goal of full-color display based on electroluminescence QDs, however it is essential to enhance performance QLEDs further each (e.g., red, green, blue; RGB) develop novel techniques patterning RGB QD pixels without cross-contamination. Here, we present state-of-the-art material, process, device technologies QLED-based First, highlight recent advances in development efficient red-, green-, blue-monochromatic QLEDs. particular, focus progress heavy-metal-free Then, describe individual QDs fabricate pixelated Finally, briefly summarize applications QLEDs, presenting possibility