Blue phosphorescent iridium(iii) complexes containing carbazole-functionalized phenylpyridine for organic light-emitting diodes: energy transfer from carbazolyl moieties to iridium(iii) cores

By introducing a hexylcarbazolyl substituent into a phenylpyridine-based ligand, a Forster energy transfer from the carbazole moieties to the Ir(iii) cores was observed in the heteroleptic cyclometalated Ir(iii) complexes, resulting in an enhancement of luminescent efficiency. The phosphorescent OLE...

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Veröffentlicht in:RSC advances 2011-01, Vol.1 (5), p.755-757
Hauptverfasser: Seo, Hoe-Joo, Song, Myungkwan, Jin, Sung-Ho, Choi, Jung Hei, Yun, Seong-Jae, Kim, Young-Inn
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container_issue 5
container_start_page 755
container_title RSC advances
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creator Seo, Hoe-Joo
Song, Myungkwan
Jin, Sung-Ho
Choi, Jung Hei
Yun, Seong-Jae
Kim, Young-Inn
description By introducing a hexylcarbazolyl substituent into a phenylpyridine-based ligand, a Forster energy transfer from the carbazole moieties to the Ir(iii) cores was observed in the heteroleptic cyclometalated Ir(iii) complexes, resulting in an enhancement of luminescent efficiency. The phosphorescent OLED gave CIE coordinates of (0.21, 0.55) with a maximum external quantum efficiency of 7.16%.
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source Royal Society Of Chemistry Journals
subjects Carbazoles
Energy transfer
Ligands
Organic light emitting diodes
Quantum efficiency
title Blue phosphorescent iridium(iii) complexes containing carbazole-functionalized phenylpyridine for organic light-emitting diodes: energy transfer from carbazolyl moieties to iridium(iii) cores
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