Self-Aligned Metal Electrodes in Fully Roll-to-Roll Processed Organic Transistors
AbstractWe demonstrate the production of organic bottom gate transistors with self-aligned electrodes, using only continuous roll-to-roll (R2R) techniques. The self-alignment allows accurate <5 µm layer-to-layer registration, which is usually a challenge in high-speed R2R environments as the standard registration methods are limited to the millimeter range—or, at best, to tens of µm if online cameras and automatic web control are utilized. The improved registration enables minimizing the overlap between the source/drain electrodes and the gate electrode, which is essential for minimizing the parasitic capacitance. The complete process is a combination of several techniques, including evaporation, reverse gravure, flexography, lift-off, UV exposure and development methods—all transferred to a continuous R2R pilot line. Altogether, approximately 80 meters of devices consisting of thousands of transistors were manufactured in a roll-to-roll fashion. Finally, a cost analysis is presented in order to ascertain the main costs and to predict whether the process would be feasible for the industrial production of organic transistors. View Full-Text
Scifeed alert for new publicationsNever miss any articles matching your research from any publisher
- Get alerts for new papers matching your research
- Find out the new papers from selected authors
- Updated daily for 49'000+ journals and 6000+ publishers
- Define your Scifeed now
Vilkman, M.; Ruotsalainen, T.; Solehmainen, K.; Jansson, E.; Hiitola-Keinänen, J. Self-Aligned Metal Electrodes in Fully Roll-to-Roll Processed Organic Transistors. Electronics 2016, 5, 2.
Vilkman M, Ruotsalainen T, Solehmainen K, Jansson E, Hiitola-Keinänen J. Self-Aligned Metal Electrodes in Fully Roll-to-Roll Processed Organic Transistors. Electronics. 2016; 5(1):2.Chicago/Turabian Style
Vilkman, Marja; Ruotsalainen, Teemu; Solehmainen, Kimmo; Jansson, Elina; Hiitola-Keinänen, Johanna. 2016. "Self-Aligned Metal Electrodes in Fully Roll-to-Roll Processed Organic Transistors." Electronics 5, no. 1: 2.
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.