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Sensors 2010, 10(3), 2262-2273; doi:10.3390/s100302262

Organic ISFET Based on Poly (3-hexylthiophene)

1,* , 2
1 Institute for Nanoelectronics, Technische Universität München, Arcisstrasse 21, D-80333 Munich, Germany 2 Helmholtz Zentrum München, German Research Center for Environmental Health, Institute of Radiation Protection, Ingolstädter Landstrasse 1, D-85764 Neuherberg, Germany
* Authors to whom correspondence should be addressed.
Received: 24 January 2010 / Revised: 13 February 2010 / Accepted: 10 March 2010 / Published: 19 March 2010
(This article belongs to the Special Issue ISFET Sensors)
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We have fabricated organic field-effect transistors (OFETs) with regioregular poly(3-hexylthiophene) (P3HT) operable at low-voltages in liquid solutions, suitable for in vitro biosensing applications. Measurements in electrolytes have shown that the performance of the transistors did not deteriorate and they can be directly used as ionsensitive transducers. Furthermore, more complex media have been tested, with the perspective of cell analysis. Degradation effects acting on the device operating in liquid could be partly compensated by adopting an alternate current measuring mode.
Keywords: organic ISFET; P3HT; biosensing organic ISFET; P3HT; biosensing
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Scarpa, G.; Idzko, A.-L.; Yadav, A.; Thalhammer, S. Organic ISFET Based on Poly (3-hexylthiophene). Sensors 2010, 10, 2262-2273.

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