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Journal of Sensors
Volume 2008, Article ID 702161, 5 pages
Research Article

Optimum Design of Organic Electrochemical Type Transistors for Applications in Biochemical Sensing

Chemistry and Physics of Materials Unit, Jawaharlal Nehru Center for Advanced Scientific Research, Bangalore 560064, India

Received 31 May 2008; Accepted 13 August 2008

Academic Editor: Yasemin Caglar

Copyright © 2008 Shruti Badhwar and K. S. Narayan. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


This paper addresses the issue of optimizing various performance parameters involved in the design of organic electrochemical type transistors based on the conducting polymer, poly (3,4-ethylenedioxythiophene): poly(styrene sulfonate)(PEDOT:PSS) for applications in biochemical sensing. We report the effect of device contact geometry, gate to channel length ratio “_, and analyte distance from the source electrode “_, on the device sensitivity and response time.