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Flexible ambipolar organic field-effect transistors with reverse-offset-printed silver electrodes for a complementary inverter
| Content Provider | Scilit |
|---|---|
| Author | Park, Junsu Kim, Minseok Yeom, Seung-Won Ha, Hyeon Jun Song, Hyenggun Jhon, Young Min Kim, Yun-Hi Ju, Byeong-Kwon |
| Copyright Year | 2016 |
| Description | Journal: Nanotechnology We report ambipolar organic field-effect transistors and complementary inverter circuits with reverse-offset-printed (ROP) Ag electrodes fabricated on a flexible substrate. A diketopyrrolopyrrole-based co-polymer (PDPP-TAT) was used as the semiconductor and poly(methyl methacrylate) was used as the gate insulator. Considerable improvement is observed in the n-channel electrical characteristics by inserting a cesium carbonate $(Cs_{2}CO_{3}$) as the electron-injection/hole-blocking layer at the interface between the semiconductors and the electrodes. The saturation mobility values are 0.35 $cm^{2}$ $V^{−1}$ $s^{−1}$ for the p-channel and 0.027 $cm^{2}$ $V^{−1}$ $s^{−1}$ for the n-channel. A complementary inverter is demonstrated based on the ROP process, and it is selectively controlled by the insertion of $Cs_{2}CO_{3}$ onto the n-channel region via thermal evaporation. Moreover, the devices show stable operation during the mechanical bending test using tensile strains ranging from 0.05% to 0.5%. The results confirm that these devices have great potential for use in flexible and inexpensive integrated circuits over a large area. |
| Related Links | http://iopscience.iop.org/article/10.1088/0957-4484/27/22/225302/pdf |
| ISSN | 09574484 |
| e-ISSN | 13616528 |
| DOI | 10.1088/0957-4484/27/22/225302 |
| Journal | Nanotechnology |
| Issue Number | 22 |
| Volume Number | 27 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 2016-04-26 |
| Access Restriction | Open |
| Subject Keyword | Journal: Nanotechnology Field Effect Transistors Complementary Inverter Ambipolar Organic Integrated Circuits |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry Nanoscience and Nanotechnology Mechanics of Materials Mechanical Engineering Bioengineering Electrical and Electronic Engineering |
