Two-colour photoswitching in photoresponsive inorganic thin films
Journal article, 2021
Herein we report the first example of an inorganic photochromic material that allows for spatial addressability. We designed a photoresponsive thin film based on a ruthenium sulfoxide complex, [Ru(deeb)2PySO-iPr]2+, which was immobilized onto a mesoporous ZrO2 surface. The resulting material allows for all-optical detection and shows reversible, selective, photochromic behavior that can be cycled back and forth. The photosiomerization quantum yield is lower on the film than in solution which is attributed to a combination of the immobilization and steric hindrance by molecules in close proximity as evident from a surface coverage dependence of the photoisomerization quantum yield. The results reported here provide an important step towards inorganic photoswitchable materials.
Author
Elin Sundin
Chalmers, Chemistry and Chemical Engineering, Chemistry and Biochemistry
Fredrik Johansson
Chalmers, Chemistry and Chemical Engineering, Chemistry and Biochemistry
Valeria Saavedra
Chalmers, Chemistry and Chemical Engineering, Chemistry and Biochemistry
Joachim Wallenstein
Chalmers, Physics, Materials Physics
August Gasslander
Jerker Mårtensson
Chalmers, Chemistry and Chemical Engineering, Chemistry and Biochemistry
Maria Abrahamsson
Chalmers, Chemistry and Chemical Engineering, Chemistry and Biochemistry
Materials Advances
26335409 (eISSN)
Vol. 2 7 2328-2333Subject Categories
Inorganic Chemistry
Textile, Rubber and Polymeric Materials
Materials Chemistry
Infrastructure
Chalmers Infrastructure for Mass spectrometry
DOI
10.1039/d1ma00013f