TY - JOUR
T1 - Synthesis and spectral properties of tris(terphenylylpyridine)iridium and tris(tritylphenylpyridine)iridium complexes as novel electrophosphorescent materials
AU - Honda, Chie
AU - Takimiya, Kazuo
AU - Otsubo, Tetsuo
AU - Aso, Yoshio
PY - 2006/10/1
Y1 - 2006/10/1
N2 - Three novel iridium complexes ( 2a-c ) have been synthesized as structural modifications of a promising electrophosphorescent material, Ir(ppy) 3 ( 1 ). The dichloromethane solutions of these complexes like 1 showed a broad metal-to-ligand charge transfer band at around 380 nm in the absorption spectra and at around 520 nm in the emission spectra. In contrast to that of Ir(ppy) 3 , the film phases of 2a-c show remarkable emission owing to the prevention of aggregation quenching due to their bulky ligands. Organic electroluminescence devices using 2a-c emitted green light.
AB - Three novel iridium complexes ( 2a-c ) have been synthesized as structural modifications of a promising electrophosphorescent material, Ir(ppy) 3 ( 1 ). The dichloromethane solutions of these complexes like 1 showed a broad metal-to-ligand charge transfer band at around 380 nm in the absorption spectra and at around 520 nm in the emission spectra. In contrast to that of Ir(ppy) 3 , the film phases of 2a-c show remarkable emission owing to the prevention of aggregation quenching due to their bulky ligands. Organic electroluminescence devices using 2a-c emitted green light.
KW - Electrophosphorescent material
KW - Iridium complex
KW - Organic electroluminescence device
KW - Photoluminescence
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U2 - 10.1080/15421400600698964
DO - 10.1080/15421400600698964
M3 - Article
AN - SCOPUS:33747592628
SN - 1542-1406
VL - 455
SP - 373
EP - 379
JO - Molecular Crystals and Liquid Crystals
JF - Molecular Crystals and Liquid Crystals
IS - 1
ER -