Efficient Yellow Electroluminescence from a Single Layer of a Cyclometalated Iridium Complex

We report on the spectroscopic, electrochemical, and electroluminescent properties of [Ir(ppy)2(dtb-bpy)]+(PF6)- (ppy: 2-phenylpyridine, dtb-bpy: 4,4‘-di-tert-butyl-2,2‘-dipyridyl). Single-layer devices were fabricated and found to emit yellow light with a brightness that exceeds 300 cd/m2 and a l...

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Veröffentlicht in:	Journal of the American Chemical Society 2004-03, Vol.126 (9), p.2763-2767
Hauptverfasser:	Slinker, Jason D, Gorodetsky, Alon A, Lowry, Michael S, Wang, Jingjing, Parker, Sara, Rohl, Richard, Bernhard, Stefan, Malliaras, George G
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: electronic structure, electrical, magnetic, and optical properties Electroluminescence Exact sciences and technology Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation Other luminescence and radiative recombination Physics
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Beschreibung
Zusammenfassung:	We report on the spectroscopic, electrochemical, and electroluminescent properties of [Ir(ppy)2(dtb-bpy)]+(PF6)- (ppy: 2-phenylpyridine, dtb-bpy: 4,4‘-di-tert-butyl-2,2‘-dipyridyl). Single-layer devices were fabricated and found to emit yellow light with a brightness that exceeds 300 cd/m2 and a luminous power efficiency that exceeds 10 Lm/W at just 3 V. The PF6 - space charge was found to dominate the device characteristics.
ISSN:	0002-7863 1520-5126
DOI:	10.1021/ja0345221