Organic Thin-Film Transistors for Chemical and Biological Sensing

Organic thin‐film transistors (OTFTs) show promising applications in various chemical and biological sensors. The advantages of OTFT‐based sensors include high sensitivity, low cost, easy fabrication, flexibility and biocompatibility. In this paper, we review the chemical sensors and biosensors base...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2012-01, Vol.24 (1), p.34-51
Main Authors: Lin, Peng, Yan, Feng
Format: Article
Language:English
Subjects:
Biosensing Techniques - instrumentation
Biosensing Techniques - methods
biosensors
chemical sensors
DNA - analysis
Dopamine - analysis
Enzymes - analysis
Glucose - analysis
Hydrogen-Ion Concentration
Ions - chemistry
Organic Chemicals - chemistry
organic electrochemical transistors
organic field effect transistors
organic thin film transistors
sensing
Transistors, Electronic
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Summary:Organic thin‐film transistors (OTFTs) show promising applications in various chemical and biological sensors. The advantages of OTFT‐based sensors include high sensitivity, low cost, easy fabrication, flexibility and biocompatibility. In this paper, we review the chemical sensors and biosensors based on two types of OTFTs, including organic field‐effect transistors (OFETs) and organic electrochemical transistors (OECTs), mainly focusing on the papers published in the past 10 years. Various types of OTFT‐based sensors, including pH, ion, glucose, DNA, enzyme, antibody‐antigen, cell‐based sensors, dopamine sensor, etc., are classified and described in the paper in sequence. The sensing mechanisms and the detection limits of the devices are described in details. It is expected that OTFTs may have more important applications in chemical and biological sensing with the development of organic electronics. Organic thin‐film transistors, including organic field‐effect transistors and organic electrochemical transistors, can be used in various types of chemical and biological sensors, such as pH, humidity, ion, glucose, DNA, enzyme, antibody‐antigen, cell and dopamine sensors. The organic transistors are expected to have more important sensing applications with the development of organic electronics.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201103334