期刊
ADVANCED MATERIALS
卷 20, 期 4, 页码 774-+出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.200702343
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Phenylpyridazine ligands coordinating to the iridium(III) atom yield a thermally stable (5 % weight loss at 439 degrees C) homoleptic iridium complex with a high phosphorescent quantum yield (0.32 at room temperature). This material has well-matched energy levels with the host, and highly efficient electrophosphorescence (52 cd A(-1); see figure) with a small roll-off (23 % at 70 mA cm(-2)) in device efficiency is achieved.
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