| Presentation | 2008-06-27 Electrode metal dependence of carrier behavior in organic FET : direct observation of carrier using TRM-SHG Takaaki Manaka, Motonaru Nakao, Martin Weis, Fei Liu, Eunju Lim, Mitsumasa Iwamoto, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The carrier behavior in pentacene field effect transistor (FET) was evaluated by the time-resolved microscopic second harmonic generation (TRM-SHG) measurement. Under the pulse operation of organic FET (OFET), time-evolution of the electric field distribution along the channel is observed by changing the delay time between laser pulses and voltage pulses that drive OFET. Monitoring the SH intensity at electrode edge enables us to observe practically the injection property. SH intensity at Au electrode edge immediately disappear (actually less than 100ns) after the voltage application also indicates the low barrier height for hole injection. By contrast, for devices with Ag electrodes, SH intensity at electrode edge gradually decreases, but the SH signal at electrode edge remains after reaching to a steady state. This implies that accumulation of injected charges is not complete, and relaxation of electric field at the edge of electrode is not sufficient. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Optical second harmonic generation / Time-resolved spectroscopy / Imaging / Organic FET / Pentacene |
| Paper # | EMD2008-21,CPM2008-40,OME2008-42 |
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| Conference Information | |
| Committee | OME |
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| Conference Date | 2008/6/20(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) | Electrode metal dependence of carrier behavior in organic FET : direct observation of carrier using TRM-SHG |
| Sub Title (in English) | |
| Keyword(1) | Optical second harmonic generation |
| Keyword(2) | Time-resolved spectroscopy |
| Keyword(3) | Imaging |
| Keyword(4) | Organic FET |
| Keyword(5) | Pentacene |
| 1st Author's Name | Takaaki Manaka |
| 1st Author's Affiliation | Department of Physical Electronics, Tokyo Institute of Technology() |
| 2nd Author's Name | Motonaru Nakao |
| 2nd Author's Affiliation | Department of Physical Electronics, Tokyo Institute of Technology |
| 3rd Author's Name | Martin Weis |
| 3rd Author's Affiliation | Department of Physical Electronics, Tokyo Institute of Technology |
| 4th Author's Name | Fei Liu |
| 4th Author's Affiliation | Department of Physical Electronics, Tokyo Institute of Technology |
| 5th Author's Name | Eunju Lim |
| 5th Author's Affiliation | Department of Physical Electronics, Tokyo Institute of Technology |
| 6th Author's Name | Mitsumasa Iwamoto |
| 6th Author's Affiliation | Department of Physical Electronics, Tokyo Institute of Technology |
| Date | 2008-06-27 |
| Paper # | EMD2008-21,CPM2008-40,OME2008-42 |
| Volume (vol) | vol.108 |
| Number (no) | 112 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |