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Efficient surface structuring and photoalignment of supramolecular polymer-azobenzene complexes through rational chromophore design

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Details

Original languageEnglish
Pages (from-to)15437-15441
Number of pages5
JournalJournal of Materials Chemistry
Volume21
Issue number39
DOIs
Publication statusPublished - 21 Oct 2011
Publication typeA1 Journal article-refereed

Abstract

Rational selection of the para-substituent of azobenzene chromophores in supramolecular polymeric complexes is exploited to control the chromophore-chromophore intermolecular interactions occurring in the material system. This allows optimizing the material system for either efficient surface-relief formation or for high and stable photoalignment. The surface-relief gratings can be subsequently coated with amorphous TiO 2 using atomic layer deposition, resulting in high-quality and high-index organic-inorganic gratings with vastly improved thermal stability compared to all-polymeric gratings.

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