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Title: Reversible switching of molecular second-order nonlinear optical polarizability through proton-transfer
Authors: Asselberghs, Inge ×
Zhao, Y
Clays, Koen
Persoons, Andre
Comito, A
Rubin, Y #
Issue Date: Jan-2002
Publisher: Elsevier science bv
Series Title: Chemical Physics Letters vol:364 issue:3-4 pages:279-283
Abstract: Reversible switching of the molecular second-order nonlinear optical (NLO) polarizability has been achieved by means of proton-transfer. The NLO molecule is an azafulleroid, based on a homoconjugated fullerene moiety as the acceptor as a new attractive building block for organic NLO materials. The electron-donor (proton-acceptor) group is the dimethylamino group. The NLO response was dramatically reduced upon protonation, and completely restored after deprotonation. Analogies and differences between this proton-transfer based switching and earlier reported electron-transfer based switching are discussed, along with the implications for third-order NLO materials based on a composite material comprised of a second-order NLO molecule and a photoaddressable proton donor.
ISSN: 0009-2614
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Imaging and Photonics
× corresponding author
# (joint) last author

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