Increasing organic vertical carrier mobility for the application of high speed bilayered organic photodetector
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- Wu-Wei Tsai
- National Chiao Tung University 1 Department of Photonic and Institute of Electro-Optical Engineering, , Hsinchu 300, Taiwan
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- Yu-Chiang Chao
- National Chiao Tung University 2 Institute of Physics, , Hsinchu 300, Taiwan
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- En-Chen Chen
- National Tsing Hua University 3 Department of Electrical Engineering, , Hsinchu 300, Taiwan
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- Hsiao-Wen Zan
- National Chiao Tung University 1 Department of Photonic and Institute of Electro-Optical Engineering, , Hsinchu 300, Taiwan
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- Hsin-Fei Meng
- National Chiao Tung University 2 Institute of Physics, , Hsinchu 300, Taiwan
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- Chain-Shu Hsu
- National Chiao Tung University 4 The Department of Applied Chemistry, , Hsinchu 300, Taiwan
説明
<jats:p>The direct influence of the vertical carrier mobility on the frequency response of bilayered organic photodiodes (PDs) is investigated for the first time. With fullerene as the acceptor material, changing vertical hole mobility from 2.3×10−5 to 2.8×10−4 cm2/V s increases PD bandwidth from 10 to 80 MHz under a 4 V operation. The influence of deposition rate on vertical hole mobility of pentacene film is also discussed. Our results facilitate the application of bilayered organic PDs on the detection of very-high-frequency optical signals.</jats:p>
収録刊行物
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- Applied Physics Letters
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Applied Physics Letters 95 (21), 213308-, 2009-11-23
AIP Publishing
