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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/2427

Title: Poly(thienylene vinylene) derivatives as low band gap polymers for photovoltaic applications
Authors: HENCKENS, Anja
KNIPPER, Martin
POLEC, Iwona
MANCA, Jean
LUTSEN, Laurence
VANDERZANDE, Dirk
Issue Date: 2004
Publisher: ELSEVIER SCIENCE SA
Citation: THIN SOLID FILMS, 451-52. p. 572-579
Abstract: New derivatives of poly(thienylene vinylene) (PTV), more specifically the 3,4-dichloro and 3,4-dibromo derivatives, have been synthesised. Their structural characterisation reveals a high molecular weight ( > 50 000 Da) and an optical band gap of 1.55 ev. For comparison also the properties and behaviour in photovoltaic devices of a soluble poly(bisthienylene isothianaphthene) derivative is discussed. The former materials have been synthesised via the 'sulfinyl' route developed in our group. It could be proven that the polymerisation reaction is proceeding via a p-quinodimethane system using stop flow UV/vis measurements. Photovoltaic devices were produced using a blend of PCBM and the sulfinyl precursor of the PTV derivative (4:1). The conversion of the precursor towards the conjugated polymer was performed on the blend. The photovoltaic devices show satisfying initial device characteristics, which substantially improve on thermal annealing of the device at 70 degreesC for several hours. (C) 2003 Elsevier B.V. All rights reserved.
Notes: Limburgs Univ Ctr, Inst Mat Res, B-3590 Diepenbeek, Belgium. IMEC, Div IMOMEC, B-3590 Diepenbeek, Belgium.Vanderzande, D, Limburgs Univ Ctr, Inst Mat Res, Univ Campus,Bldg D, B-3590 Diepenbeek, Belgium.dirk.vanderzande@luc.ac.be
URI: http://hdl.handle.net/1942/2427
DOI: 10.1016/j.tsf.2003.11.065
ISI #: 000220510500117
ISSN: 0040-6090
Category: A1
Type: Journal Contribution
Validation: ecoom, 2005
Appears in Collections: Research publications

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