Projects per year
Abstract
Fundamental knowledge on the intrinsic timescale of structural transformations in photo-switchable Metal-Organic Framework films, is crucial to tune their switching performance and to facilitate their applicability as stimuli-responsive materials. In this work, for the first time, an integrated approach to study and quantify the temporal evolution of structural transformations is demonstrated on an epitaxially oriented DMOF-1-on-MOF film system comprising azobenzene in the DMOF-1 pores (DMOF-1/AB). We employed time-resolved Grazing Incidence Wide-Angle X-Ray Scattering measurements (GIWAXS) to track the structural response of the DMOF-1/AB film upon altering the length of the azobenzene molecule by photo-isomerization (trans-to-cis, 343 nm; cis-to-trans, 450 nm). Within seconds, the DMOF-1/AB response occurred fully reversible and over several switching cycles by cooperative photo-switching of the entire oriented film, as confirmed further by infrared measurements. Our work thereby suggests a new avenue to elucidate the timescales and photo-switching characteristics in structur-ally responsive MOF film systems.
Original language | English |
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Publication status | Published - 22 Apr 2022 |
Event | Advanced Materials Day 2022 - TU Graz, Graz, Austria Duration: 22 Apr 2022 → … |
Seminar
Seminar | Advanced Materials Day 2022 |
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Country/Territory | Austria |
City | Graz |
Period | 22/04/22 → … |
Fields of Expertise
- Advanced Materials Science
Projects
- 1 Finished
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EU - POPCRYSTAL - Precisely Oriented Porous Crystalline Films and Patterns
1/05/18 → 30/04/23
Project: Research project