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Red‐Emitting Dendritic Iridium(III) Complexes for Solution Processable Phosphorescent Organic Light‐Emitting Diodes
Author(s) -
Qin Tianshi,
Ding Junqiao,
Baumgarten Martin,
Wang Lixiang,
Müllen Klaus
Publication year - 2012
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201100657
Subject(s) - phosphorescence , iridium , dendrimer , triphenylamine , electroluminescence , materials science , oled , phosphorescent organic light emitting diode , photochemistry , surface modification , quenching (fluorescence) , diode , optoelectronics , polymer chemistry , fluorescence , nanotechnology , chemistry , organic chemistry , catalysis , layer (electronics) , optics , physics
Functionalization of a red phosphorescent iridium(III) complex core surrounded by rigid polyphenylene dendrons with a hole‐transporting triphenylamine surface allows to prevent the intermolecular aggregation‐induced emission quenching, improves charge recombination, and therefore enhances photo‐ and electroluminescence efficiencies of dendrimer in solid state. These multifunctional shape‐persistent dendrimers provide a new pathway to design highly efficient solution processable materials for phosphorescent organic light‐emitting diodes (PhOLEDs).