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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/8230

Title: Effect of molecular orientation on photovoltaic efficiency and carrier transport in a new semiconducting polymer
Authors: Kazukauskas, V
Pranaitis, M
Sentein, C
Rocha, L
Raimond, P
DUYSSENS, Iris
VAN SEVEREN, Ineke
CLEIJ, Thomas
LUTSEN, Laurence
VANDERZANDE, Dirk
Issue Date: 2008
Publisher: POLISH ACAD SCIENCES INST PHYSICS
Citation: ACTA PHYSICA POLONICA A, 113(3). p. 1009-1012
Abstract: New functionalized soluble poly (p-phenylene vinylene) derivative bearing polar molecules was designed and synthesized in order to investigate effects of molecular orientation in polymer photovoltaic devices. The active polar molecule is the 4-(N-butyl-N-2-hydroxyethyl)-1- nitro-benzene group. The grafting of the push-pull molecule with a donor/transmitter/acceptor structure, possessing a large ground state dipole moment, enables the molecular orientation by a dc electric field. An internal electric field stored in such system facilitates exciton dissociation and improves charge transport in single-layer devices. In our systems an increase in the external quantum efficiency by a factor of about 1.5 to 2 is estimated. The associated effects of orientation on the carrier injection and transport properties were evidenced.
Notes: Vilnius State Univ, Dept Semicond Phys, LT-10222 Vilnius, Lithuania. Vilnius State Univ, Inst Mat Sci & Appl Res, LT-10222 Vilnius, Lithuania. CEA Saclay, DRT LITEN DTS LCS, F-91191 Gif Sur Yvette, France. IMEC IMOMEC Div, B-3590 Diepenbeek, Belgium. Hasselt Univ, SBG OS Dept, B-3590 Diepenbeek, Belgium.Kazukauskas, V, Vilnius State Univ, Dept Semicond Phys, Sauletekio 9,Bldg 3, LT-10222 Vilnius, Lithuania.vaidotas.kazukauskas@ff.vu.lt
URI: http://hdl.handle.net/1942/8230
Link to publication: http://przyrbwn.icm.edu.pl/APP/ABSTR/113/a113-3-50.html
ISI #: 000254351000050
ISSN: 0587-4246
Category: A1
Type: Journal Contribution
Validation: ecoom, 2009
Appears in Collections: Research publications

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