Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 7, Issue 1, Pages 969-973Publisher
AMER CHEMICAL SOC
DOI: 10.1021/am507708c
Keywords
PEDOT:PSS; activated carbon; conducting polymers; electrochemical doping; electrochemical transistors; organic electronics
Funding
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- Universita di Bologna
- Polytechnique Montreal CMC microsystems
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The characteristics of the gate electrode have significant effects on the behavior of organic electrochemical transistors (OECTs), which are intensively investigated for applications in the booming field of organic bioelectronics. In this work, high specific surface area activated carbon (AC) was used as gate electrode material in OECTs based on the conducting polymer poly(3,4-ethylenedioxythiophene) (PEDOT) doped with poly(styrenesulfonate) (PSS). We found that the high specific capacitance of the AC gate electrodes leads to high drain-source current modulation in OECTs, while their intrinsic quasi-reference characteristics make unnecessary the presence of an additional reference electrode to monitor the OECT channel potential.
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