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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 cm2 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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Author details:Michael Schulze, Manuel Martin UtechtORCiDGND, Thomas Moldt, Daniel Przyrembel, Cornelius Gahl, Martin Weinelt, Peter SaalfrankORCiDGND, Petra TegederORCiDGND
DOI:https://doi.org/10.1039/c5cp03093e
ISSN:1463-9076
ISSN:1463-9084
Title of parent work (English):Physical chemistry, chemical physics : PCCP ; a journal of European Chemical Societies
Publisher:Royal Society of Chemistry
Place of publishing:Cambridge
Publication type:Article
Language:English
Publication year:2015
Publishing institution:Universität Potsdam
Release date:2015/09/25
Volume:27
Issue:17
First page:18079
Last Page:18086
Organizational units:Mathematisch-Naturwissenschaftliche Fakultät / Institut für Chemie
DDC classification:5 Naturwissenschaften und Mathematik / 54 Chemie / 540 Chemie und zugeordnete Wissenschaften
Peer review:Referiert
Publishing method:Open Access
License (English):License LogoCreative Commons - Namensnennung 3.0 Unported
External remark:Zweitveröffentlichung in der Schriftenreihe Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe ; 196
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