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Quantum Dots: Inkjet‐Printed High‐Efficiency Multilayer QLEDs Based on a Novel Crosslinkable Small‐Molecule Hole Transport Material (Small 16/2019)
Author(s) -
Xie Liming,
Xiong Xueying,
Chang Qiaowen,
Chen Xiaolian,
Wei Changting,
Li Xia,
Zhang Meng,
Su Wenming,
Cui Zheng
Publication year - 2019
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201970083
Subject(s) - quantum dot , inkjet printing , materials science , optoelectronics , biphenyl , light emitting diode , diode , electron transport chain , layer (electronics) , quantum efficiency , oled , nanotechnology , composite material , inkwell , chemistry , organic chemistry , biochemistry
In article number 1900111 , Wenming Su and co‐workers synthesize a crosslinkable hole transport material, 4,4′‐bis(3‐vinyl‐9 H ‐carbazol‐9‐yl)‐1,1′‐biphenyl (CBP‐V) for inkjet printing of quantum dots light‐emitting diodes (QLEDs). The inkjet‐printed CBP‐V film is smooth and flat. After thermal curing, an extremely dense and crosslinked solvent resistant film is formed. The function of this film for QLED is hole transport and to help hole injection at the hole transport layer (CBP‐V)/QD. Finally, the hole and electron are recombined in the quantum dot layer and emit red light, achieving high efficiency.