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Effective Color Tuning in Organic Light‐Emitting Diodes Based on Aluminum Tris(5‐aryl‐8‐hydroxyquinoline) Complexes
Author(s) -
Montes V. A.,
Li G.,
Pohl R.,
Shinar J.,
Anzenbacher P.
Publication year - 2004
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.200401155
Subject(s) - homo/lumo , aryl , 8 hydroxyquinoline , materials science , electroluminescence , tris , photochemistry , oled , light emitting diode , aluminium , green light , diode , band gap , blue light , optoelectronics , molecule , nanotechnology , inorganic chemistry , organic chemistry , chemistry , alkyl , biochemistry , layer (electronics) , metallurgy
Tris(quinolate)Al III (Alq 3 )‐based metallocomplexes with electron‐ deficient or electron‐rich aryl substituents display remarkable blue‐to‐red tuning of both photo‐ and electroluminescence, covering most of the visible‐light region (see Figure). The correlation between the electronic properties of the aryl substituents, highest occupied–lowest unoccupied molecular orbital (HOMO–LUMO) gap, and the emissive properties of the complexes suggests this approach may be used to design new light‐emitting materials.