High-external-quantum-efficiency organic light-emitting devices
作者： G. Gu , D. Z. Garbuzov , P. E. Burrows , S. Venkatesh , S. R. Forrest
DOI: 10.1364/OL.22.000396
关键词: Flat glass 、 Light scattering 、 OLED 、 Aperture 、 Substrate (electronics) 、 Quantum efficiency 、 Optoelectronics 、 Refractive index 、 Quantum 、 Optics 、 Materials science
摘要: We study the internal and external quantum efficiencies of vacuum-deposited organic light-emitting devices (OLED's). The efficiency OLED's based on tris-(8-hydroxyquinoline) aluminum is calculated to be 5.7 times observed ηe, consistent with measurements. demonstrate a shaped substrate that increases ηe by factor 1.9±0.2 over similar fabricated upon flat glass substrates leads 100%-emissive aperture, i.e., emitting area completely occupies display even in presence metal interconnects. also discuss structure an additional 2. high device are promising for developing OLED-based displays extremely low power consumption increased operational lifetime.
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