4.8 Article

Low-Driving-Voltage Blue Phosphorescent Organic Light-Emitting Devices with External Quantum Efficiency of 30%

Journal

ADVANCED MATERIALS
Volume 26, Issue 29, Pages 5062-5066

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201401621

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Funding

  1. New Energy and Industrial Technology Development Organization (NEDO) through the Fundamental Technology Development of Next Generation Lighting of High-efficiency and High-quality
  2. Grants-in-Aid for Scientific Research [26620202] Funding Source: KAKEN

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A homoleptic iridium (III) tris(phenylimidazolinate) complex realizes a high EQE of 30%, a low turn-on voltage of 2.5 V, and a small efficiency roll-off in a blue organic light-emitting device (OLED). This device also shows high power efficiencies over 75 lm W-1 and an ideal light distribution pattern at 100 cd m(-2).

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