Efficient yellow electroluminescence from a single layer of a cyclometalated iridium complex |
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| Authors: | Slinker Jason D Gorodetsky Alon A Lowry Michael S Wang Jingjing Parker Sara Rohl Richard Bernhard Stefan Malliaras George G |
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| Institution: | Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853, USA. |
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| Abstract: | We report on the spectroscopic, electrochemical, and electroluminescent properties of Ir(ppy)(2)(dtb-bpy)](+)(PF(6))(-) (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/m(2) and a luminous power efficiency that exceeds 10 Lm/W at just 3 V. The PF(6)(-) space charge was found to dominate the device characteristics. |
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