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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.
Author details: | Michael Schulze, Manuel Martin UtechtORCiDGND, Thomas Moldt, Daniel Przyrembel, Cornelius Gahl, Martin Weinelt, Peter SaalfrankORCiDGND, Petra TegederORCiDGND |
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URN: | urn:nbn:de:kobv:517-opus4-81198 |
Publication series (Volume number): | Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe (196) |
Publication type: | Postprint |
Language: | English |
Publication year: | 2015 |
Publishing institution: | Universität Potsdam |
Release date: | 2015/09/25 |
Source: | Phys. Chem. Chem. Phys., 2015,17, 18079-18086 - DOI: 10.1039/C5CP03093E |
Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Chemie |
DDC classification: | 5 Naturwissenschaften und Mathematik / 54 Chemie / 540 Chemie und zugeordnete Wissenschaften |
Publishing method: | Open Access |
License (English): | Creative Commons - Namensnennung 3.0 Unported |
External remark: | Bibliographieeintrag der Originalveröffentlichung/Quelle |