Nondestructive Photopatterning of Heavy-Metal-Free Quantum Dots

Bibliographische Detailangaben
Veröffentlicht in:	Advanced materials (Deerfield Beach, Fla.). - 1998. - 34(2022), 43 vom: 19. Okt., Seite e2205504
1. Verfasser:	Yang, Jeehye (VerfasserIn)
Weitere Verfasser:	Lee, Myeongjae, Park, Se Young, Park, Myoungjin, Kim, Jonghoon, Sitapure, Niranjan, Hahm, Donghyo, Rhee, Seunghyun, Lee, Daeyeon, Jo, Hyunwoo, Jo, Yong Hyun, Lim, Jaemin, Kim, Jungwook, Shin, Tae Joo, Lee, Doh C, Kwak, Kyungwon, Kwon, Joseph S, Kim, BongSoo, Bae, Wan Ki, Kang, Moon Sung
Format:	Online-Aufsatz
Sprache:	English
Veröffentlicht:	2022
Zugriff auf das übergeordnete Werk:	Advanced materials (Deerfield Beach, Fla.)
Schlagworte:	Journal Article heavy-metal-free quantum dots high-resolution patterning ligand crosslinking photopatterning

Beschreibung
Zusammenfassung:	© 2022 Wiley-VCH GmbH. Electroluminescence from quantum dots (QDs) is a suitable photon source for futuristic displays offering hyper-realistic images with free-form factors. Accordingly, a nondestructive and scalable process capable of rendering multicolored QD patterns on a scale of several micrometers needs to be established. Here, nondestructive direct photopatterning for heavy-metal-free QDs is reported using branched light-driven ligand crosslinkers (LiXers) containing multiple azide units. The branched LiXers effectively interlock QD films via photo-crosslinking native aliphatic QD surface ligands without compromising the intrinsic optoelectronic properties of QDs. Using branched LiXers with six sterically engineered azide units, RGB QD patterns are achieved on the micrometer scale. The photo-crosslinking process does not affect the photoluminescence and electroluminescence characteristics of QDs and extends the device lifetime. This nondestructive method can be readily adapted to industrial processes and make an immediate impact on display technologies, as it uses widely available photolithography facilities and high-quality heavy-metal-free QDs with aliphatic ligands
Beschreibung:	Date Revised 26.10.2022 published: Print-Electronic Citation Status PubMed-not-MEDLINE
ISSN:	1521-4095
DOI:	10.1002/adma.202205504