Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/4159
Title: Evidence of the improvement of photovoltaic efficiency by polar molecule orientation in a new semiconducting polymer
Authors: Sentein, Carole
Rocha, Licinio
Apostoluk, Aleksandra
Raimond, Paul
DUYSSENS, Iris 
VAN SEVEREN, Ineke 
CLEIJ, Thomas 
LUTSEN, Laurence 
VANDERZANDE, Dirk 
Kaukauskas, Vaidotas
Pranaitis, Mindaugas
Cyras, Valius
Issue Date: 2007
Publisher: ELSEVIER SCIENCE BV
Source: SOLAR ENERGY MATERIALS AND SOLAR CELLS, 91(19). p. 1816-1824
Abstract: Storage of an internal field in a polymeric semiconductor device should be of great interest for applications like photovoltaic solar cells to facilitate exciton dissociation and improve charge transport in the structure. Orientation of polar molecules, contained inside a polymer binder, induces a rectifying effect, behaving as a distributed homojunction within a single polymeric film. To investigate this concept, a new poly(p-phenylenevinylene) (PPV) derivative bearing push-pull like molecules was purposefully designed and synthesized. Effect of polar molecules' orientation on carrier injection and transport properties was studied. In the test systems, we demonstrate an increase of the external quantum efficiency upon orientation. (c) 2007 Elsevier B.V. All rights reserved.
Notes: CEA Saclay, DEN DMN SRMA LTMEX, F-91191 Gif Sur Yvette, France. IMEC, IMOMEC Div, B-3590 Diepenbeek, Belgium. Hasselt Univ, SBG OS Dept, B-3590 Diepenbeek, Belgium. Vilnius Univ, Semicond Phys Dept, LT-10222 Vilnius, Lithuania. Vilnius Univ, Inst Mat Sci & Appl Res, LT-10222 Vilnius, Lithuania.Sentein, C, CEA Saclay, DEN DMN SRMA LTMEX, F-91191 Gif Sur Yvette, France.carole.sentein@cea.fr
Keywords: organic solar cells; polymer semiconductors; molecular chain orientation; carrier transport
Document URI: http://hdl.handle.net/1942/4159
ISSN: 0927-0248
e-ISSN: 1879-3398
DOI: 10.1016/j.solmat.2007.06.012
ISI #: 000250272300008
Category: A1
Type: Journal Contribution
Validations: ecoom 2008
Appears in Collections:Research publications

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