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Thin films with implemented molecular switches for the application in polymer-based optical waveguides

  • Complexes like iron (II)-triazoles exhibit spin crossover behavior at ambient temperature and are often considered for possible application. In previous studies, we implemented complexes of this type into polymer nanofibers and first polymer-based optical waveguide sensor systems. In our current study, we synthesized complexes of this type, implemented them into polymers and obtained composites through drop casting and doctor blading. We present that a certain combination of polymer and complex can lead to composites with high potential for optical devices. For this purpose, we used two different complexes [Fe(atrz)3](2 ns)2 and [Fe(atrz)3]Cl1.5(BF4)0.5 with different polymers for each composite. We show through transmission measurements and UV/VIS spectroscopy that the optical properties of these composite materials can reversibly change due to the spin crossover effect.

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Author:Maximilian Seydi KilicORCiD, Jules BrehmeORCiD, Yves Deja, Justus Pawlak, Axel Günther, Arthur Sander, Dietrich Müller, Antonia Renz, Cyril Rajnak, Michaela Polášková, Bernhard Roth, Ralf Franz SindelarORCiDGND, Franz Renz
DOI original:https://doi.org/10.1007/s10751-024-01849-6
Parent Title (English):Hyperfine interactions
Document Type:Conference Proceeding
Year of Completion:2024
Publishing Institution:Hochschule Hannover
Contributing Corporation:37th International Conference on the Applications of the Mössbauer Effect, ICAME 2023, Cartagena de Indias, Colombia, 3. - 8. September 2023
Release Date:2024/01/29
Tag:Composite materials; Molecular switches; Polymers; Spin crossover; Thin film; Triazole complexes; Waveguides
GND Keyword:Elektrospinnen; Triazole; Verbundwerkstoff; Wellenleiter; Polymere
Article Number:8
Page Number:15
Institutes:Fakultät II - Maschinenbau und Bioverfahrenstechnik
DDC classes:660 Technische Chemie
Licence (German):License LogoCreative Commons - CC BY - Namensnennung 4.0 International