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Schulze M, Utecht M, Moldt T, et al. Nonlinear optical response of photochromic azobenzene-functionalized self-assembled monolayers. Phys Chem Chem Phys. 2015;17(27):18079-86doi: 10.1039/c5cp03093e.
Schulze, M., Utecht, M., Moldt, T., Przyrembel, D., Gahl, C., Weinelt, M., Saalfrank, P., & Tegeder, P. (2015). Nonlinear optical response of photochromic azobenzene-functionalized self-assembled monolayers. Physical chemistry chemical physics : PCCP, 17(27), 18079-86. https://doi.org/10.1039/c5cp03093e
Schulze, Michael, et al. "Nonlinear optical response of photochromic azobenzene-functionalized self-assembled monolayers." Physical chemistry chemical physics : PCCP vol. 17,27 (2015): 18079-86. doi: https://doi.org/10.1039/c5cp03093e
Schulze M, Utecht M, Moldt T, Przyrembel D, Gahl C, Weinelt M, Saalfrank P, Tegeder P. Nonlinear optical response of photochromic azobenzene-functionalized self-assembled monolayers. Phys Chem Chem Phys. 2015 Jul 21;17(27):18079-86. doi: 10.1039/c5cp03093e. Epub 2015 Jun 23. PMID: 26100382.
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Phys Chem Chem Phys. 2015 Jul 21;17(27):18079-86. doi: 10.1039/c5cp03093e. Epub 2015 Jun 23.

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

Physical chemistry chemical physics : PCCP

Michael Schulze, Manuel Utecht, Thomas Moldt, Daniel Przyrembel, Cornelius Gahl, Martin Weinelt, Peter Saalfrank, Petra Tegeder

Affiliations

  1. Physikalisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, 69120 Heildeberg, Germany. [email protected].

PMID: 26100382 DOI: 10.1039/c5cp03093e

Abstract

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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