Design, Characterization and Evaluation of OTFTs for use in e-NOSE - Eirez Izquierdo, José Enrique
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In this work, an organic thin film transistor (OTFT) with bottom gate - bottom contact (BGBC) structure on glass, with organic dielectric and semiconductor, was fabricated to use it as a gas sensor in the detection of isoborneol (IB) in water. No BGBC OTFTs fabricated on glass substrate with poly(4-vinylphenol) (PVP) dielectric and poly(2,5-bis(3-tetradecyl-thiophen-2-yl)thieno[3,2-b]thiophene) (PBTTT-C14) semiconductor as a gas sensor for IB detection were found in the literature consulted. Conjugated polymers, such as the polythiophene derivative PBTTT-C14, exhibit semiconducting electrical…mehr

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Produktbeschreibung
In this work, an organic thin film transistor (OTFT) with bottom gate - bottom contact (BGBC) structure on glass, with organic dielectric and semiconductor, was fabricated to use it as a gas sensor in the detection of isoborneol (IB) in water. No BGBC OTFTs fabricated on glass substrate with poly(4-vinylphenol) (PVP) dielectric and poly(2,5-bis(3-tetradecyl-thiophen-2-yl)thieno[3,2-b]thiophene) (PBTTT-C14) semiconductor as a gas sensor for IB detection were found in the literature consulted. Conjugated polymers, such as the polythiophene derivative PBTTT-C14, exhibit semiconducting electrical properties. Due to the dimensions of the main chain of this material and the compact and organized stacking of it when in a film, it is possible to obtain structures known as terraces. The presence of these structures entails a better electrical performance of the devices fabricated from this organic semiconductor. Solutions of the cross-linked PVP organic dielectric and the PBTTT-C14 organic semiconductor were deposited by spin coating. A system integrating these sensors could be useful in real-time monitoring of water quality.
Autorenporträt
Imeet stepen' po awtomatizacii (2008) i stepen' magistra (2011) w Gawane, Kuba. On imeet opyt raboty s processami mikroälektroniki, spinowym i lezwijnym osazhdeniem, tonkoplenochnymi organicheskimi tranzistorami (OTFTs), gazowymi datchikami i atomno-silowoj mikroskopiej. Poluchil doktorskuü stepen' (2021) w EPUSP u professora d-ra Fernando Zhozepetti Fonseka.