TY - JOUR
T1 - Toward Full-Color Electroluminescent Quantum Dot Displays
AU - Yang, Jiwoong
AU - Choi, Moon Kee
AU - Yang, U. Jeong
AU - Kim, Seo Young
AU - Kim, Young Seong
AU - Kim, Jeong Hyun
AU - Kim, Dae Hyeong
AU - Hyeon, Taeghwan
N1 - Publisher Copyright:
©
PY - 2021/1/13
Y1 - 2021/1/13
N2 - 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.
AB - 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.
KW - electroluminescence
KW - full-color display
KW - high-resolution patterning
KW - light-emitting diode
KW - quantum dot
UR - http://www.scopus.com/inward/record.url?scp=85097733359&partnerID=8YFLogxK
U2 - 10.1021/acs.nanolett.0c03939
DO - 10.1021/acs.nanolett.0c03939
M3 - Review article
C2 - 33258610
AN - SCOPUS:85097733359
SN - 1530-6984
VL - 21
SP - 26
EP - 33
JO - Nano Letters
JF - Nano Letters
IS - 1
ER -