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http://hdl.handle.net/1942/16958
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DC Field | Value | Language |
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dc.contributor.author | OOSTERBAAN, Wibren | - |
dc.contributor.author | BOLSEE, Jean-Christophe | - |
dc.contributor.author | Wang, Linjun | - |
dc.contributor.author | VRINDTS, Veerle | - |
dc.contributor.author | LUTSEN, Laurence | - |
dc.contributor.author | Lemaur, Vincent | - |
dc.contributor.author | Beljonne, David | - |
dc.contributor.author | McNeill, Christopher R. | - |
dc.contributor.author | Thomsen, Lars | - |
dc.contributor.author | MANCA, Jean | - |
dc.contributor.author | VANDERZANDE, Dirk | - |
dc.date.accessioned | 2014-07-14T09:12:14Z | - |
dc.date.available | 2014-07-14T09:12:14Z | - |
dc.date.issued | 2014 | - |
dc.identifier.citation | ADVANCED FUNCTIONAL MATERIALS, 24 (14), p. 1994-2004 | - |
dc.identifier.issn | 1616-301X | - |
dc.identifier.uri | http://hdl.handle.net/1942/16958 | - |
dc.description.abstract | The influence of the interface of the dielectric SiO2 on the performance of bottom-contact, bottom-gate poly(3-alkylthiophene) (P3AT) field-effect transistors (FETs) is investigated. In particular, the operation of transistors where the active polythiophene layer is directly spin-coated from chlorobenzene (CB) onto the bare SiO2 dielectric is compared to those where the active layer is first spin-coated then laminated via a wet transfer process such that the film/air interface of this film contacts the SiO2 surface. While an apparent alkyl side-chain length dependent mobility is observed for films directly spin-coated onto the SiO2 dielectric (with mobilities of ≈10−3 cm2 V−1 s−1 or less) for laminated films mobilities of 0.14 ± 0.03 cm2 V−1 s−1 independent of alkyl chain length are recorded. Surface-sensitive near edge X-ray absorption fine structure (NEXAFS) spectroscopy measurements indicate a strong out-of-plane orientation of the polymer backbone at the original air/film interface while much lower average tilt angles of the polymer backbone are observed at the SiO2/film interface. A comparison with NEXAFS on crystalline P3AT nanofibers, as well as molecular mechanics and electronic structure calculations on ideal P3AT crystals suggest a close to crystalline polymer organization at the P3AT/air interface of films from CB. These results emphasize the negative influence of wrongly oriented polymer on charge carrier mobility and highlight the potential of the polymer/air interface in achieving excellent “out-of-plane” orientation and high FET mobilities. | - |
dc.description.sponsorship | Engineering and Physical Sciences Research Council UK (grant number EP/E051804/1); European Commission (grant numbers NMP3-LA-2008-212311; ITN-238177); Region Wallonne (FEDER - Smartfilm RF project); Region Wallonne (OPTI2MAT excellence program); INTERREG project ORGANEXT; Fund for Scientific Research-Flanders (FWO); BELSPO (grant number IAP P6/27); IWT (Institute for the Promotion of Innovation by Science and Technology in Flanders) via the SBO project "Polyspec" | - |
dc.language.iso | en | - |
dc.rights | © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. | - |
dc.subject.other | charge transport; conducting polymers; conjugated polymers; organic field-effect transistors; structure-property relationships | - |
dc.title | On the Relation between Morphology and FET Mobility of Poly( 3-alkylthiophene) s at the Polymer/ SiO2 and Polymer/ Air Interface | - |
dc.type | Journal Contribution | - |
dc.identifier.epage | 2004 | - |
dc.identifier.issue | 14 | - |
dc.identifier.spage | 1994 | - |
dc.identifier.volume | 24 | - |
local.bibliographicCitation.jcat | A1 | - |
local.type.refereed | Refereed | - |
local.type.specified | Article | - |
dc.identifier.doi | 10.1002/adfm.201303298 | - |
dc.identifier.isi | 000333809300004 | - |
item.validation | ecoom 2015 | - |
item.fulltext | With Fulltext | - |
item.accessRights | Restricted Access | - |
item.fullcitation | OOSTERBAAN, Wibren; BOLSEE, Jean-Christophe; Wang, Linjun; VRINDTS, Veerle; LUTSEN, Laurence; Lemaur, Vincent; Beljonne, David; McNeill, Christopher R.; Thomsen, Lars; MANCA, Jean & VANDERZANDE, Dirk (2014) On the Relation between Morphology and FET Mobility of Poly( 3-alkylthiophene) s at the Polymer/ SiO2 and Polymer/ Air Interface. In: ADVANCED FUNCTIONAL MATERIALS, 24 (14), p. 1994-2004. | - |
item.contributor | OOSTERBAAN, Wibren | - |
item.contributor | BOLSEE, Jean-Christophe | - |
item.contributor | Wang, Linjun | - |
item.contributor | VRINDTS, Veerle | - |
item.contributor | LUTSEN, Laurence | - |
item.contributor | Lemaur, Vincent | - |
item.contributor | Beljonne, David | - |
item.contributor | McNeill, Christopher R. | - |
item.contributor | Thomsen, Lars | - |
item.contributor | MANCA, Jean | - |
item.contributor | VANDERZANDE, Dirk | - |
crisitem.journal.issn | 1616-301X | - |
crisitem.journal.eissn | 1616-3028 | - |
Appears in Collections: | Research publications |
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oosterbaan 1.pdf Restricted Access | Published version | 791.21 kB | Adobe PDF | View/Open Request a copy |
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