Iridium Complexes with Cyclometalated 2-Cycloalkenyl-Pyridine Ligands as Highly Efficient Emitters for Organic Light-Emitting Diodes

Iridium Complexes with Cyclometalated 2-Cycloalkenyl-Pyridine Ligands as Highly Efficient Emitters for Organic Light-Emitting Diodes

Iridium complexes containing cyclometalated 2‐cyclohexenylpyridine derivatives with rigid and bulky cyclohexene units are synthesized, and found to be highly efficient materials in EL devices (see figure). Devices based on these iridium complexes emit yellowish‐ green light with the very high extern...

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Veröffentlicht in:Advanced materials (Weinheim) 2008-05, Vol.20 (10), p.2003-2007
Hauptverfasser: Kang, Dong Min, Kang, Jae-Wook, Park, Jong Won, Jung, Sung Ouk, Lee, Se-Hyung, Park, Hyung-Dol, Kim, Yun-Hi, Shin, Sung Chul, Kim, Jang-Joo, Kwon, Soon-Ki
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Sprache:eng
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Zusammenfassung:Iridium complexes containing cyclometalated 2‐cyclohexenylpyridine derivatives with rigid and bulky cyclohexene units are synthesized, and found to be highly efficient materials in EL devices (see figure). Devices based on these iridium complexes emit yellowish‐ green light with the very high external quantum efficiency of 18.7%.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.200702558