A Comparative Study of the Gas Sensing Behavior in P3HT-and PBTTT-Based OTFTs: The Influence of Film Morphology and Contact Electrode Position

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Abstract

Bottom- and top-contact organic thin film transistors (OTFTs) were fabricated, using poly(3-hexylthiophene-2,5-diyl) (P3HT) and poly[2,5-bis(3-tetradecylthiophen-2-yl)thieno[3,2-b]thiophene] (PBTTT-C16) as p-type channel semiconductors. Four different types of OTFTs were fabricated and investigated as gas sensors against three volatile organic compounds, with different associated dipole moments. The OTFT-based sensor responses were evaluated with static and transient current measurements. A comparison between the different architectures and the relative organic semiconductor was made.

Autore Pugliese

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  • Manoli K.; Dumitru L.M.; Mulla M.Y.; Magliulo M.; Di Franco C.; Santacroce M.V.; Scamarcio G.; Torsi L.

Titolo volume/Rivista

Sensors

Anno di pubblicazione

2014

ISSN

1424-8220

ISBN

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Settori ERC

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