title: A comparative study of the gas sensing behavior in P3HT- and PBTTT-based OTFTs: the influence of film morphology and contact electrode position.
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.
authors.affiliation: Dipartimento di Chimica Università degli Studi di Bari Aldo Moro, Via Orabona 4, 70126 Bari, Italy. kyriaki.manoli@uniba.it.
authors.forename: Kyriaki
authors.initials: K
authors.lastname: Manoli
authors.affiliation: Dipartimento di Chimica Università degli Studi di Bari Aldo Moro, Via Orabona 4, 70126 Bari, Italy. liviu.dumitru@uniba.it.
authors.forename: Liviu Mihai
authors.initials: LM
authors.lastname: Dumitru
authors.affiliation: Dipartimento di Chimica Università degli Studi di Bari Aldo Moro, Via Orabona 4, 70126 Bari, Italy. maria.magliulo@uniba.it.
authors.forename: Mohammad Yusuf
authors.initials: MY
authors.lastname: Mulla
authors.affiliation: Dipartimento di Chimica Università degli Studi di Bari Aldo Moro, Via Orabona 4, 70126 Bari, Italy. maria.magliulo@uniba.it.
authors.forename: Maria
authors.initials: M
authors.lastname: Magliulo
authors.affiliation: CNR-IFN and Dipartimento Interateneo di Fisica, Università degli Studi di Bari "A. Moro"-Via Orabona 4, 70126 Bari, Italy. cinzia.difranco@uniba.it.
authors.forename: Cinzia
authors.initials: C
authors.lastname: Di Franco
authors.affiliation: CNR-IFN and Dipartimento Interateneo di Fisica, Università degli Studi di Bari "A. Moro"-Via Orabona 4, 70126 Bari, Italy. maria.santacroce1@uniba.it.
authors.forename: Maria Vittoria
authors.initials: MV
authors.lastname: Santacroce
authors.affiliation: CNR-IFN and Dipartimento Interateneo di Fisica, Università degli Studi di Bari "A. Moro"-Via Orabona 4, 70126 Bari, Italy. gaetano.scamarcio@uniba.it.
authors.forename: Gaetano
authors.initials: G
authors.lastname: Scamarcio
authors.affiliation: Dipartimento di Chimica Università degli Studi di Bari Aldo Moro, Via Orabona 4, 70126 Bari, Italy. luisa.torsi@uniba.it.
authors.forename: Luisa
authors.initials: L
authors.lastname: Torsi
mesh_terms: D003217:Conductometry / Q000295:instrumentation*; D004566:Electrodes; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005740:Gases / Q000737:chemistry*; D008567:Membranes, Artificial; D011108:Polymers / Q000737:chemistry*; D013876:Thiophenes / Q000737:chemistry*; D014173:Transistors, Electronic; D055549:Volatile Organic Compounds / Q000032:analysis
chemical_list: D005740:Gases; D008567:Membranes, Artificial; D011108:Polymers; D013876:Thiophenes; D055549:Volatile Organic Compounds; C000588862:poly(3-hexylthiophene-2,5-diyl)