[en] We present a joint theoretical and experimental investigation of the second-order nonlinear optical properties of a new kind of active molecule with a triblock structure. The molecular architecture is such that two highly polarizable conjugated segments are separated from each other by a spacer; one of the conjugated segments is end-capped with an electron-donor group, the other one by an acceptor. E-vinylthiophenes are used as the conjugated segments; N,N-dimethylaniline and nitrophenyl are selected as the donor-acceptor pairs, while the spacer consists of a nonconjugated moiety. Several spacers are considered and discussed with respect to their ability to modulate the charge transfer between the donor and acceptor ends.
Research Center/Unit :
Center for Education and Research on Macromolecules (CERM)
Disciplines :
Chemistry Materials science & engineering
Author, co-author :
dos Santos, D. A.; University of Mons-Hainaut (UMH) > Centre de Recherche en Electronique et Photonique Moléculaires > Service de Chimie des Matériaux Nouveaux
Kogej, T.; University of Mons-Hainaut (UMH) > Centre de Recherche en Electronique et Photonique Moléculaires > Service de Chimie des Matériaux Nouveaux
Brédas, Jean-Luc; University of Mons-Hainaut (UMH) > Centre de Recherche en Electronique et Photonique Moléculaires > Service de Chimie des Matériaux Nouveaux
Boutton, C.; University of Leuven (KUL) > Center for Research on Molecular Photonics and Electronics > Laboratory of Chemical and Biological Dynamics
Hendrickx, E.; University of Leuven (KUL) > Center for Research on Molecular Photonics and Electronics > Laboratory of Chemical and Biological Dynamics
Houbrechts, S.; University of Leuven (KUL) > Center for Research on Molecular Photonics and Electronics > Laboratory of Chemical and Biological Dynamics
Clays, K.; University of Leuven (KUL) > Center for Research on Molecular Photonics and Electronics > Laboratory of Chemical and Biological Dynamics
Persoons, A.; University of Leuven (KUL) > Center for Research on Molecular Photonics and Electronics > Laboratory of Chemical and Biological Dynamics
Xhang, J. X.; Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Dubois, Philippe ; Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Jérôme, Robert ; Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Language :
English
Title :
Novel functionalized oligo-vinylthiophene molecules with modulated second-order nonlinear optical response
BELSPO - SPP Politique scientifique - Service Public Fédéral de Programmation Politique scientifique FRIA - Fonds pour la Formation à la Recherche dans l'Industrie et dans l'Agriculture FWO - Fonds Wetenschappelijk Onderzoek Vlaanderen F.R.S.-FNRS - Fonds de la Recherche Scientifique
Commentary :
The authors acknowledge Journal of Molecular Structure (Elsevier) for allowing them to archive this paper.
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