Document Server@UHasselt >
Research >
Research publications >

Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/2444

Title: Novel regiospecific MDMO-PPV copolymer with improved charge transport for bulk heterojunction solar cells
Authors: Mozer, AJ
Denk, P
Scharber, MC
Neugebauer, H
Sariciftci, NS
LUTSEN, Laurence
Issue Date: 2004
Citation: JOURNAL OF PHYSICAL CHEMISTRY B, 108(17). p. 5235-5242
Abstract: A novel regiospecific MDMO-PPV copolymer has been synthesized by the copolymerization of the mixture of 70 wt % 1-(chloromethyl)-5- [(3,7-dimethyloctyl)oxy]-2-methoxy-4- [(octyl sulfoxy)methyl] benzene (monomer A) and 30 wt % 1-(chloromethyl)-2-[(3,7-dimethyloctyl)oxy]-5-methoxy-4- [(octyl sulfoxy)methyl] benzene (monomer 13) via the sulfinyl precoursor synthetic route. The hole mobility of the new regiospecific MDMO-PPV polymer (also called OC1C10-PPV) measured with a time-of-flight setup is found to be a factor of similar to3.5 higher at all measured electric fields at room temperature as compared to regiorandom MDMO-PPV. The electric field and temperature dependence of the hole mobility is discussed in the framework of disorder formalism. The improved charge transport properties of the novel regiospecific MDMO-PPV copolymer is attributed to the better interchain interactions facilitated by the more regular PPV backbone, which is also supported by the red shifted optical absorption and photoluminescence. Finally, the improved charge transport properties have been utilized by the fabrication of bulk heterojunction photovoltaic devices with a very high (0.71) filling factor based on the blend of the novel regiospecific MDMO-PPV copolymer and the soluble fullerene derivative 1-[3-(methoxycarbonyl)propyl]-1-phenyl-(6,6)-C-61 (PCBM).
Notes: Konarka Austria, Forsch & Entwicklungs GmbH, A-4020 Linz, Austria. Johannes Kepler Univ, Linz Inst Organ Solar Cells Phys Chem, A-4040 Linz, Austria. Limburgs Univ Centrum, Organ & Polymer Chem Grp, B-3590 Diepenbeek, Belgium. IMEC, Organ & Polymer Chem Grp, IMOMEC Div, B-3590 Diepenbeek, Belgium.Mozer, AJ, Konarka Austria, Forsch & Entwicklungs GmbH, Gruberstr 40-42, A-4020 Linz, Austria.attila.mozer@jku.at
URI: http://hdl.handle.net/1942/2444
DOI: 10.1021/jp049918t
ISI #: 000220997300019
ISSN: 1520-6106
Category: A1
Type: Journal Contribution
Validation: ecoom, 2005
Appears in Collections: Research publications

Files in This Item:

There are no files associated with this item.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.