FET Transduction of Electric Dipole Changes in Organic Layers
2007 (English)In: TRANSDUCERS 2007 - 2007 International Solid-State Sensors, Actuators and Microsystems Conference, IEEE , 2007, 1895-1898 p.Conference paper (Refereed)
Modern chemistry makes possibile the production of artificial receptors endowed with interaction sites specific towards selected analytes. To fabricate chemical sensors a transducer able to preserve the selectivity of such sensing layers is requested. We demonstrate the Field Effect Transistors (FET) coated by metalloporphyrins emphasizes the coordination of analytes with the sensing molecules with respect to the weakest forces that tend to cancel the selectivity. Molecular simulations show that coordination of gases such as carbon monoxide and nitric oxide greatly change the porphyrin electric dipole both in magnitude and direction inducing a large FET signal shift.
Place, publisher, year, edition, pages
IEEE , 2007. 1895-1898 p.
, Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS), ISSN 2159-547X ; 2007
IdentifiersURN: urn:nbn:se:liu:diva-39741DOI: 10.1109/SENSOR.2007.4300528Local ID: 51014ISBN: 1-4244-0842-3 (online)ISBN: 1-4244-0841-5 (print)OAI: oai:DiVA.org:liu-39741DiVA: diva2:260590
TRANSDUCERS 2007 - 2007 International Solid-State Sensors, Actuators and Microsystems Conference, 10-14 June 2007, Lyon, France