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Nonlinear optical response of photochromic azobenzene-functionalized self-assembled monolayers

  • The combination of photochromic and nonlinear optical (NLO) properties of azobenzene-functionalized self-assembled monolayers (SAMs) constitutes an intriguing step towards novel photonic and optoelectronic devices. By utilizing the second-order NLO process of second harmonic generation (SHG), supported by density-functional theory and correlated wave function method calculations, we demonstrate that the photochromic interface provides the necessary prerequisites en route towards possible future technical applications: we find a high NLO contrast on the order of 16% between the switching states. These are furthermore accessible reversibly and with high efficiencies in terms of cross sections on the order of 10(-18) cm(2) for both photoisomerization reactions, i.e., drivable by means of low-power LED light sources. Finally, both photostationary states (PSSs) are thermally stable at ambient conditions.

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Metadaten
Author:Michael Schulze, Manuel Utecht, Thomas Moldt, Daniel Przyrembel, Cornelius Gahl, Martin Weinelt, Peter SaalfrankORCiDGND, Petra Tegeder
DOI:https://doi.org/10.1039/c5cp03093e
ISSN:1463-9076 (print)
ISSN:1463-9084 (online)
Pubmed Id:http://www.ncbi.nlm.nih.gov/pubmed?term=26100382
Parent Title (English):Physical chemistry, chemical physics : a journal of European Chemical Societies
Publisher:Royal Society of Chemistry
Place of publication:Cambridge
Document Type:Article
Language:English
Year of first Publication:2015
Year of Completion:2015
Release Date:2017/03/27
Volume:17
Issue:27
Pagenumber:8
First Page:18079
Last Page:18086
Funder:Deutsche Forschungsgemeinschaft through the collaborative research center [Sfb 658]
Organizational units:Mathematisch-Naturwissenschaftliche Fakultät / Institut für Chemie
Peer Review:Referiert