{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,16]],"date-time":"2026-05-16T18:19:41Z","timestamp":1778955581478,"version":"3.51.4"},"reference-count":28,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2014,9,11]],"date-time":"2014-09-11T00:00:00Z","timestamp":1410393600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>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.<\/jats:p>","DOI":"10.3390\/s140916869","type":"journal-article","created":{"date-parts":[[2014,9,11]],"date-time":"2014-09-11T12:04:41Z","timestamp":1410437081000},"page":"16869-16880","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":32,"title":["A Comparative Study of the Gas Sensing Behavior in P3HT- and PBTTT-Based OTFTs: The Influence of Film Morphology and Contact Electrode Position"],"prefix":"10.3390","volume":"14","author":[{"given":"Kyriaki","family":"Manoli","sequence":"first","affiliation":[{"name":"Dipartimento di Chimica Universit\u00e0 degli Studi di Bari Aldo Moro, Via Orabona 4, 70126 Bari, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Liviu","family":"Dumitru","sequence":"additional","affiliation":[{"name":"Dipartimento di Chimica Universit\u00e0 degli Studi di Bari Aldo Moro, Via Orabona 4, 70126 Bari, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mohammad","family":"Mulla","sequence":"additional","affiliation":[{"name":"Dipartimento di Chimica Universit\u00e0 degli Studi di Bari Aldo Moro, Via Orabona 4, 70126 Bari, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Maria","family":"Magliulo","sequence":"additional","affiliation":[{"name":"Dipartimento di Chimica Universit\u00e0 degli Studi di Bari Aldo Moro, Via Orabona 4, 70126 Bari, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Cinzia","family":"Franco","sequence":"additional","affiliation":[{"name":"CNR-IFN and Dipartimento Interateneo di Fisica, Universit\u00e0 degli Studi di Bari \"A. 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