Fast-switching all-printed organic electrochemical transistors
2013 (English)In: Organic electronics, ISSN 1566-1199, Vol. 14, no 5, 1276-1280 p.Article in journal (Refereed) Published
Symmetric and fast (∼5 ms) on-to-off and off-to-on drain current switching characteristics have been obtained in screen printed organic electrochemical transistors (OECTs) including PEDOT:PSS (poly(3,4-ethylenedioxythiophene) doped with poly(styrene sulfonic acid)) as the active transistor channel material. Improvement of the drain current switching characteristics is made possible by including a carbon conductor layer on top of PEDOT:PSS at the drain electrode that is in direct contact with both the channel and the electrolyte of the OECT. This carbon conductor layer suppresses the effects from a reduction front that is generated in these PEDOT:PSS-based OECTs. In the off-state of these devices this reduction front slowly migrate laterally into the PEDOT:PSS drain electrode, which make off-to-on switching slow. The OECT including carbon electrodes was manufactured using only standard printing process steps and may pave the way for fully integrated organic electronic systems that operate at low voltages for applications such as logic circuits, sensors and active matrix addressed displays.
Place, publisher, year, edition, pages
Elsevier , 2013. Vol. 14, no 5, 1276-1280 p.
Electrochemical transistor, Printed electronics, Organic electronics, Flexible electronics, PEDOT
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-93254DOI: 10.1016/j.orgel.2013.02.027ISI: 000317825800009OAI: oai:DiVA.org:liu-93254DiVA: diva2:623782
Funding Agencies|Lintec Corporation||2013-05-282013-05-282015-05-06