Fabrication and Characterization of Ferroelectric Poly(vinylidene fluoride–tetrafluoroethylene) Gate Field-Effect Transistor Memories
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概要
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Organic ferroelectric gate field-effect transistor (FET) memories have been fabricated using pentacene as the semiconductor and a poly(vinylidene fluoride–tetrafluoroethylene) [P(VDF–TeFE)] thin film as the ferroelectric gate. The P(VDF–TeFE) film is prepared by spin coating and annealing at 170 °C for 2.5 h, and pentacene is prepared by vacuum evaporation. The polarization–electric field ($P$–$E$) hysteresis of the P(VDF–TeFE) thin film is observed and enhanced by poling treatment. The obtained $P_{\text{r}}$ of 4 μC/cm2 is sufficient for controlling pentacene surface potential. Good memory characteristics are obtained in the P(VDF–TeFE) gate FET. For such a FET, the ON/OFF ratio of drain current is 830, the carrier mobility is 0.11 cm2 V-1 s-1, and the memory retention is over 16 h.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2010-04-25
著者
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Kanashima Takeshi
Department Of Electrical Engineering Faculty Of Engineering Science Osaka University
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Miyashita Hiroyuki
Department Of German Linguistics And Literature Faculty Of Letters Kanazawa University
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Watanabe Tomohiro
Department Of Gastroenterology And Hepatology Kyoto University Graduate School Of Medicine
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Tomohiro Watanabe
Department of Systems Innovation, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan
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Masanori Okuyama
Department of Systems Innovation, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan
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Hiroyuki Miyashita
Department of Systems Innovation, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan
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Takeshi Kanashima
Department of Systems Innovation, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan
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WATANABE Tomohiro
Department of Applied Chemistry and Biotechnology, Faculty of Engineering, Chiba University
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