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

authored by

Maximilian Seydi Kilic, Jules Brehme, Yves Deja, Justus Pawlak, Axel Günther, Arthur Sander, Dietrich Müller, Antonia Renz, Cyril Rajnak, Michaela Polášková, Bernhard Roth, Ralf Franz Sindelar, Franz Renz

Abstract

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](2ns)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.

Organisation(s)

Institute of Inorganic Chemistry
Hannover Centre for Optical Technologies (HOT)
Hannover School for Nanotechnology
PhoenixD: Photonics, Optics, and Engineering - Innovation Across Disciplines

External Organisation(s)

University of Applied Sciences and Arts Hannover (HsH)
University of SS Cyril and Methodius, Trnava
Palacky University

Type

Article

Journal

Hyperfine Interactions

Volume

245

No. of pages

15

ISSN

0304-3843

Publication date

18.01.2024

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics, Nuclear and High Energy Physics, Condensed Matter Physics, Physical and Theoretical Chemistry

Electronic version(s)

https://doi.org/10.1007/s10751-024-01849-6 (Access: Open)