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Optical Patterning: Direct Optical Patterning of Quantum Dot Light‐Emitting Diodes via In Situ Ligand Exchange (Adv. Mater. 46/2020)
Author(s) -
Cho Himchan,
Pan JiaAhn,
Wu Haoqi,
Lan Xinzheng,
Coropceanu Igor,
Wang Yuanyuan,
Cho Wooje,
Hill Ethan A.,
Anderson John S.,
Talapin Dmitri V.
Publication year - 2020
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.202070346
Subject(s) - electroluminescence , materials science , quantum dot , photoresist , optoelectronics , diode , light emitting diode , in situ , ligand (biochemistry) , nanotechnology , chemistry , biochemistry , receptor , organic chemistry , layer (electronics)
In article number 2003805, Dmitri V. Talapin and co‐workers demonstrate photoresist‐free, high‐resolution optical patterning of quantum dot (QD) light‐emitting diodes by using photoacid generators that induce photochemical reactions and in situ ligand exchange in QD films. Uniform electroluminescence patterns of QDs are produced with feature size down to 1.5 μm while preserving the structural, optical, and electronic properties of the patterned QDs. This advanced patterning method can boost the realization of not only QD electroluminescence displays but also other integrated optoelectronic devices using colloidal QDs.