Analytical and Bioanalytical Chemistry

, Volume 384, Issue 2, pp 343–353

Chemical and biological sensors based on organic thin-film transistors

Review

DOI: 10.1007/s00216-005-3390-2

Cite this article as:
Mabeck, J.T. & Malliaras, G.G. Anal Bioanal Chem (2006) 384: 343. doi:10.1007/s00216-005-3390-2

Abstract

The application of organic thin-film transistors (OTFTs) to chemical and biological sensing is reviewed. This review covers transistors that are based on the modulation of current through thin organic semiconducting films, and includes both field-effect and electrochemical transistors. The advantages of using OTFTs as sensors (including high sensitivity and selectivity) are described, and results are presented for sensing analytes in both gaseous and aqueous environments. The primary emphasis is on the major developments in the field of OTFT sensing over the last 5–10 years, but some earlier work is discussed briefly to provide a foundation.

Keywords

Gas sensorsBiosensorsOrganic field-effect transistorsMicroelectrochemical enzyme transistors

Copyright information

© Springer-Verlag 2005

Authors and Affiliations

  1. 1.Department of Materials Science and EngineeringCornell UniversityNew YorkUSA