Investigations on current capabilities of PEDOT:PSS conductors

Abstract

The organic electronics products becomes every day more and more present, especially known being organic light emitting diodes (OLED), organic photovoltaic cells (OPV) or organic thin film transistors (OFET). It is very important to have a reliable solution for interconnection of these devices in a manner similar to printed circuit boards. This paper will present results on electrical and thermal tests of organic conductors based on poly(3,4-ethylenedioxythiophene) doped with polystyrenesulfonic acid (PEDOT:PSS) that can be used for data and power tracks. The samples are, and will be prepared by screen printing and ink-jetting, having silver paste and respectively ink based terminations. The results have shown that the current capabilities of PEDOT:PSS organic conductive tracks are limited by the dissipated power, due to relatively large resistance. As expected, the screen printed tracks having a higher thickness will have lower resistance. The temperature coefficient (TCR) has been found negative around -1000 ppm/°C.