title: Organic ISFET based on poly (3-hexylthiophene).
abstract: 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 ion-sensitive 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.
authors.affiliation: Institute for Nanoelectronics, Technische Universität München, Arcisstrasse 21, D-80333 Munich, Germany. scarpa@tum.de
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Scarpa
authors.forename: Anna-Lena
authors.initials: AL
authors.lastname: Idzko
authors.forename: Anandi
authors.initials: A
authors.lastname: Yadav
authors.forename: Stefan
authors.initials: S
authors.lastname: Thalhammer
mesh_terms: D015374:Biosensing Techniques / Q000295:instrumentation*; D002412:Cations / Q000032:analysis; D004573:Electrolytes; D006863:Hydrogen-Ion Concentration; D013696:Temperature; D013876:Thiophenes / Q000737:chemistry*; D014173:Transistors, Electronic
chemical_list: D002412:Cations; D004573:Electrolytes; D013876:Thiophenes; C507295:poly(3-hexylthiophene)