Journal Article

High yield manufacturing of fully screen-printed organic electrochemical transistors

Zabihipour, Marzieh, Lassnig, Roman, Engquist, Isak, Berggren, Magnus, Andersson Ersman, Peter, Strandberg, Jan, Fabiano, Simone

2020

Overview

The potential of the screen printing method for large-scale production of organic electrochemical transistors (OECTs), combining high production yield with low cost, is here demonstrated. Fully screen-printed OECTs of 1 mm 2 area, based on poly(3,4-ethylenedioxythiophene) doped with poly(styrensulfonate) (PEDOT:PSS), have been manufactured on flexible polyethylene terephthalate (PET) substrates. The goal of this project effort has been to explore and develop the printing processing to enable high yield and stable transistor parameters, targeting miniaturized digital OECT circuits for large-scale integration (LSI). Of the 760 OECTs manufactured in one batch on a PET sheet, only two devices were found malfunctioning, thus achieving an overall manufacturing yield of 99.7%. A drain current ON/OFF ratio at least equal to 400 was applied as the strict exclusion principle for the yield, motivated by proper operation in LSI circuits. This consistent performance of low-footprint OECTs allows for the integration of PEDOT:PSS-based OECTs into complex logic circuits operating at high stability and accuracy.

• Publisher: Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio
• Subject: 639/166 / 639/766 / Chemistry and Materials Science / Electronics and Microelectronics / Instrumentation / Large scale integration / Logic circuits / Materials Science / Optical and Electronic Materials / Polyethylene terephthalate / Polymer Sciences / Screen printing / Semiconductor devices / Substrates / Transistors