Document Server@UHasselt >
Research >
Research publications >

Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/9099

Title: Improvement of photovoltaic efficiency by polar molecule orientation in a newly developed semiconducting polymer
Authors: Kazukauskas, V.
Cyras, V.
Pranaitis, M.
Sentein, C.
Rocha, L.
Raimond, P.
CLEIJ, Thomas
LUTSEN, Laurence
Issue Date: 2008
Citation: THIN SOLID FILMS, 516(24). p. 8963-8968
Abstract: We report investigations of a new purposefully designed and synthesized functionalized soluble poly(p-phenylene vinylene) (PPV) derivative bearing polar diode-like molecules (NLO-PPV). The active polar molecule is the 4-(N-butyl-N-2-hydroxyethyl)-l-nitro-benzene group on the copolymer. The grafting of the push-pull molecule with a donor/transmitter/acceptor structure, possessing a large ground state dipole moment, enables the efficient molecular orientation by a DC-electric field. An internal electric field could be stored in such system, facilitating exciton dissociation and improving charge transport in polymer photovoltaic single-layer devices, resulting in increased efficiency. In the test systems an increase of the external quantum efficiency by a factor of about 1.5 to 2 took place upon orientation of the polar molecules. The effect of orientation on the carrier injection and transport properties depending on the chain orientation direction was evidenced. (c) 2007 Elsevier B.V. All rights reserved.
Notes: [Kazukauskas, V.; Cyras, V.; Pranaitis, M.] Vilnius State Univ, Dept Semicond Phys, LT-10222 Vilnius, Lithuania. [Kazukauskas, V.; Cyras, V.; Pranaitis, M.] Vilnius State Univ, Inst Mat Sci & Appl Res, LT-10222 Vilnius, Lithuania. [Sentein, C.; Rocha, L.; Raimond, P.] CEA Saclay, DRT LITEN DTS LCS, F-91191 Gif Sur Yvette, France. [Duyssens, I.; Van Severen, I.; Lutsen, L.; Vanderzande, D.] IMEC, IMOMEC Div, B-3590 Diepenbeek, Belgium. [Cleij, T.; Vanderzande, D.] Hasselt Univ, SBG OS Dept, B-3590 Diepenbeek, Belgium.
URI: http://hdl.handle.net/1942/9099
DOI: 10.1016/j.tsf.2007.11.071
ISI #: 000260945200025
ISSN: 0040-6090
Category: A1
Type: Journal Contribution
Validation: ecoom, 2009
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.