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https://hdl.handle.net/10119/9200
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| Title: | Control of threshold voltage of organic field-effect transistors by space charge polarization |
| Authors: | Sakai, Heisuke
Konno, Koudai
Murata, Hideyuki |
| Keywords: | Organic field-effect transistors (OFETs)
Threshold voltage shift
Polarization
Gate dielectric |
| Issue Date: | 2009-07-10 |
| Publisher: | Elsevier |
| Magazine name: | Thin Solid Films |
| Volume: | 518 |
| Number: | 2 |
| Start page: | 510 |
| End page: | 513 |
| DOI: | 10.1016/j.tsf.2009.07.012 |
| Abstract: | We demonstrate organic field-effect transistors (OFETs) with an ion-dispersed polymer for the gate dielectrics. By applying external electric field (V_<ex>), the dispersed ions can migrate by electrophoresis and separated ion pairs form space charge polarization in the gate dielectrics. After V_<ex> was applied, the drain current is increased over 7 times and threshold voltage is decreased from −12.9 V to −2.9 V. The shift direction of V_<th> is controllable by the polarity of the V_<ex>. Results of ultraviolet/visible differential absorption study reveal that the active layer of OFETs is charged not only electrostatically but electrochemically with increasing the time after V_<ex> was applied. |
| Rights: | NOTICE: This is the author's version of a work accepted for publication by Elsevier. Heisuke Sakai, Koudai Konno, and Hideyuki Murata, Thin Solid Films, 518(2), 2009, 510-513, http://dx.doi.org/10.1016/j.tsf.2009.07.012 |
| URI: | https://hdl.handle.net/10119/9200 |
| Material Type: | author |
| Appears in Collections: | c10-1. 雑誌掲載論文 (Journal Articles)
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