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 |
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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%. |
doi_str_mv | 10.1039/c1ra00140j |
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The phosphorescent OLED gave CIE coordinates of (0.21, 0.55) with a maximum external quantum efficiency of 7.16%.</abstract><doi>10.1039/c1ra00140j</doi><tpages>3</tpages></addata></record> |
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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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