Abstract
We show that the electrical properties of polymer thin-film transistors (PTFTs) can be enhanced by controlling the solvent properties of poly(3,4-ethylenedioxythiophene) doped with poly(styrene sulfonate) (PEDOT/PSS) solution used as the inkjet-printed source and drain electrodes. Specifically, addition of dimethyl sulfoxide (DMSO) into the PEDOT/PSS solution increased the conductivity of the inkjet-printed PEDOT electrodes and remarkably reduced the contact resistance of the electrodes. The lower contact resistance of the DMSO-treated PEDOT electrode compared to the corresponding electrode without DMSO treatment may be due to enhanced interfacial stability at the contact between the printed PEDOT electrodes and the semiconductor layers.
| Original language | English |
|---|---|
| Article number | 082102 |
| Journal | Applied Physics Letters |
| Volume | 88 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 2006 |
Bibliographical note
Funding Information:This work was supported by the National Research Laboratory Program of the Ministry of Science and Technology of Korea, a grant (F0004022) from the Information Display R&D Center under the 21st Century Frontier R&D Program, and the ERC Program of MOST /KOSEF (R11-2003-006-03005-0), the Regional Technology Innovation Program (RTI04-01-04) of MOCIE, and the BK21 Program of the Ministry of Education and Human Resources Development of Korea.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)