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Kazuo Udagawa, Hisahiro Sasabe, Cao Cai and Junji Kido Low-Driving-Voltage Blue Phosphorescent Organic Light-Emitting Devices with External Quantum Efficiency of 30% Advanced Materials 26

Article first published online: 27 JUN 2014 | DOI: 10.1002/adma.201401621

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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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