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2008 | 113 | 3 | 1009-1012
Article title

Effect of Molecular Orientation on Photovoltaic Efficiency and Carrier Transport in a New Semiconducting Polymer

Content
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EN
Abstracts
EN
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.
Keywords
Contributors
  • Department of Semiconductor Physics, and Institute of Materials Science and Applied Research, Vilnius University, Saulėtekio al. 9, bldg. 3, LT-10222 Vilnius, Lithuania
author
  • Department of Semiconductor Physics, and Institute of Materials Science and Applied Research, Vilnius University, Saulėtekio al. 9, bldg. 3, LT-10222 Vilnius, Lithuania
author
  • DRT-LITEN-DTS-LCS, at.451, CEA Saclay, F-91191 Gif-sur-Yvette, France
author
  • DRT-LITEN-DTS-LCS, at.451, CEA Saclay, F-91191 Gif-sur-Yvette, France
author
  • DRT-LITEN-DTS-LCS, at.451, CEA Saclay, F-91191 Gif-sur-Yvette, France
author
  • IMEC-IMOMEC Division, Wetenschapspark 1, B-3590 Diepenbeek, Belgium
  • IMEC-IMOMEC Division, Wetenschapspark 1, B-3590 Diepenbeek, Belgium
author
  • IMEC-IMOMEC Division, Wetenschapspark 1, B-3590 Diepenbeek, Belgium
author
  • Hasselt University, Agoralaan 1, SBG/OS department, B-3590 Diepenbeek, Belgium
  • IMEC-IMOMEC Division, Wetenschapspark 1, B-3590 Diepenbeek, Belgium
  • Hasselt University, Agoralaan 1, SBG/OS department, B-3590 Diepenbeek, Belgium
References
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  • 7. V. Kažukauskas, M. Pranaitis, L. Sicot, F. Kajzar, Mol. Cryst. Liq. Cryst. 447, 459 (2006)
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv113n350kz
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