Transient Electroluminescence of White Organic Light-Emitting Diodes with Blue Phosphorescent and Red Fluorescent Emissive Layers
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概要
- 論文の詳細を見る
The transient electroluminescence (EL) of white organic light-emitting diodes (OLEDs) with blue phosphorescent and red fluorescent emissive layers was investigated by applying voltage pulses on the devices. The transient properties of a blue phosphorescence EL signal are strongly affected by the phosphorescence recombination lifetime. As a result, the transient properties of a white OLED were almost identical to those of a phosphorescent emissive layer. Utilizing the differences in transient characteristics between the fluorescent materials and Ir complexes, the emission color has been successfully tuned by varying applied pulse width and frequency.
- 2009-04-25
著者
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Ohmori Yutaka
Center for Advanced Science and Innovation (CASI), Osaka University
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Kajii Hirotake
Center for Advanced Science and Innovation (CASI), Osaka University
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Sekimoto Yasuhiro
Center for Advanced Science and Innovation, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
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Takahota Noriyoshi
Center for Advanced Science and Innovation, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
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