Enhanced Modulation Speed of Tris(8-hydroxyquinoline)aluminum-Based Organic Light Source with Low-Work-Function Electrode
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概要
- 論文の詳細を見る
We have investigated the effects of barrier height at a metal/organic interface on the modulation speed of organic light-emitting diodes (OLEDs). We found that a low barrier height is important for improving the modulation speed. Also, the insertion of an 8-hydroxyquinolinato lithium (Liq) layer as an electron injection layer (EIL) was observed to increase the modulation speed of OLEDs. As a result, the improved modulation speed was demonstrated using a low-work-function electrode and an EIL. We have ascribed the enhanced modulation speed of the OLEDs to current density–voltage characteristics. A maximum cutoff frequency of 12.1 MHz was achieved for an OLED with a Liq or Ca layer as an EIL and a metal cathode, respectively.
- INSTITUTE OF PURE AND APPLIED PHYSICSの論文
- 2007-12-15
著者
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Ichikawa Musubu
Department Of Functional Polymer Science Faculty Of Textile Science And Technology Shinshu Universit
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Wei Bin
Department Of Functional Polymer Science Faculty Of Textile Science And Technology Shinshu Universit
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Taniguchi Yoshio
Department Of Functional Polymer Science Faculty Of Textile Science And Technology Shinshu Universit
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FUKUDA Takeshi
Applied Electronics Technology Department, Optics and Electronics Laboratory, Fujikura Ltd.
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Wei Bin
Department of Functional Polymer Science, Faculty of Textile Science and Technology, Shinshu University, 3-15-1 Tokida, Ueda, Nagano 386-8567, Japan
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Ichikawa Musubu
Department of Functional Polymer Science, Faculty of Textile Science and Technology, Shinshu University, 3-15-1 Tokida, Ueda, Nagano 386-8567, Japan
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- Enhanced Modulation Speed of Tris(8-hydroxyquinoline)aluminum-Based Organic Light Source with Low-Work-Function Electrode