| Presentation | 2013-10-11 Electromagnetic Field Analyses of OFET-type THz Sensors Using the FDTD Method Tomoya Ueda, Shi-Guang Li, Ryo Suzuki, Katsuyuki Fujii, Ryosuke Matsubara, Masakazu Nakamura, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We have been studying the application of organic field-effect transistors (OFETs) to a new class of THz sensors by small band-edge fluctuation in OFETs, of which amplitude corresponds to THz photons. Since the wavelength of THz wave and the size of each part of the OFETs are comparable, electric-field distribution in the organic layer possibly exhibits significant frequency dependence. In this work, we, therefore, attempted to estimate the electric-field distribution in the OFET by electromagnetic-field simulation using the finite-difference time-domain (FDTD) method. First, the complex dielectric functions of the materials used in this work were measured. Then, the propagation of THz wave was analyzed using the dielectric constants obtained and two types of polarization directions. As a result, the average electric-field strength in the organic layer was found to depend on the frequency of THz-wave and also on the polarization direction. These frequency dependences qualitatively agreed with the modulation absorption spectra of gate-electric-field-induced carriers in an OFET. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | THz Wave / Organic Thin-Film Transistor / Pentacene / THz Time-Domain Spectroscopy / FDTD Method |
| Paper # | OME2013-54 |
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| Committee | OME |
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| Conference Date | 2013/10/4(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Organic Material Electronics (OME) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Electromagnetic Field Analyses of OFET-type THz Sensors Using the FDTD Method |
| Sub Title (in English) | |
| Keyword(1) | THz Wave |
| Keyword(2) | Organic Thin-Film Transistor |
| Keyword(3) | Pentacene |
| Keyword(4) | THz Time-Domain Spectroscopy |
| Keyword(5) | FDTD Method |
| 1st Author's Name | Tomoya Ueda |
| 1st Author's Affiliation | Nara Institute of Science and Technology() |
| 2nd Author's Name | Shi-Guang Li |
| 2nd Author's Affiliation | Graduate School of Engineering,Chiba University:Nara Institute of Science and Technology |
| 3rd Author's Name | Ryo Suzuki |
| 3rd Author's Affiliation | Nara Institute of Science and Technology |
| 4th Author's Name | Katsuyuki Fujii |
| 4th Author's Affiliation | Department of Systems Design and Engineering, Nanzan University |
| 5th Author's Name | Ryosuke Matsubara |
| 5th Author's Affiliation | Nara Institute of Science and Technology |
| 6th Author's Name | Masakazu Nakamura |
| 6th Author's Affiliation | Nara Institute of Science and Technology |
| Date | 2013-10-11 |
| Paper # | OME2013-54 |
| Volume (vol) | vol.113 |
| Number (no) | 243 |
| Page | pp.pp.- |
| #Pages | 6 |
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