Layer-by-layer self-assembled pyrrole-based donor-acceptor chromophores as electro-optic materials

Antonio Facchetti, Alessandro Abbotto, Luca Beverina, Milko van der Boom, Pulak Dutta, Guennadi Evmenenko, Giorgo A. Pagani, Tobin J Marks

Research output: Contribution to journalArticle

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Abstract

The synthesis of the heterocycle-based diethanolaminomethyl-functionalized derivative 1-(pyridin-4-yl)-2-[(N-methylpyrrol-2-yl)-5-methylenediethanolamine]ethene (2) from (1-pyridin-4-yl)-2-(N-methyl-pyrrol-2-yl)ethene (1) and their methylpyridinium dyes 1-(N-methylpyridinio)-2-[(N-methylpyrrol-2-yl)-5- methylenediethanolamine]ethene iodide (3) and 1-(N-methylpyridinio)-2-[(N-methylpyrrol-2-yl)-5- methylenediethanolamine]ethene iodide (4) is described. NLO-active chromophore monolayers SA-1 and SA-2 were obtained by reaction of p-iodomethylphenyldiiodochlorosilane (5)-functionalized substrates and dye precursors 1 and 2, respectively. A χ(2) value of ∼120 pm/V is observed for SA-2. The new diethanolaminomethyl-functionalized chromophore 2 is also a suitable building block for the layer-bylayer formation of intrinsically acentric, highly transparent nonlinear optical/electro-optic multilayers (SAS = self-assembled superlattice). The organic SAS films are characterized by a combination of physicochemical methods including synchrotron specular X-ray reflectivity, angle-dependent polarized second-harmonic generation, optical (absorption and photoluminescence) spectroscopy, X-ray photospectroscopy, atomic force microscopy, and advancing contact angle measurements.

Original languageEnglish
Pages (from-to)1064-1072
Number of pages9
JournalChemistry of Materials
Volume15
Issue number5
DOIs
Publication statusPublished - Mar 11 2003

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Pyrroles
Chromophores
Electrooptical effects
Dyes
X rays
Photoluminescence spectroscopy
Iodides
Angle measurement
Harmonic generation
Synchrotrons
Absorption spectroscopy
Light absorption
Contact angle
Monolayers
Atomic force microscopy
Multilayers
Coloring Agents
Derivatives
Substrates
ethylene

ASJC Scopus subject areas

  • Materials Science(all)
  • Materials Chemistry

Cite this

Layer-by-layer self-assembled pyrrole-based donor-acceptor chromophores as electro-optic materials. / Facchetti, Antonio; Abbotto, Alessandro; Beverina, Luca; van der Boom, Milko; Dutta, Pulak; Evmenenko, Guennadi; Pagani, Giorgo A.; Marks, Tobin J.

In: Chemistry of Materials, Vol. 15, No. 5, 11.03.2003, p. 1064-1072.

Research output: Contribution to journalArticle

Facchetti, Antonio ; Abbotto, Alessandro ; Beverina, Luca ; van der Boom, Milko ; Dutta, Pulak ; Evmenenko, Guennadi ; Pagani, Giorgo A. ; Marks, Tobin J. / Layer-by-layer self-assembled pyrrole-based donor-acceptor chromophores as electro-optic materials. In: Chemistry of Materials. 2003 ; Vol. 15, No. 5. pp. 1064-1072.
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