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Photochromic Free MOF-Based Near-Infrared Optical Switch |
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| Authors: | Nikita K. Kulachenkov Dr. Dapeng Sun Yuri A. Mezenov Dr. Andrei N. Yankin Sergey Rzhevskiy Dr. Vyacheslav Dyachuk Dr. Alexandre Nominé Dr. Ghouti Medjahdi Prof. Evgeny A. Pidko Dr. Valentin A. Milichko |
| Affiliation: | 1. Department of Physics and Engineering, ITMO University, St. Petersburg, 197101 Russia;2. Inorganic Systems Engineering Group, Department of Chemical Engineering, Delft University of Technology, 2629 HZ Delft, The Netherlands;3. Department of Physics and Engineering, ITMO University, St. Petersburg, 197101 Russia Institut Jean Lamour, Université de Lorraine, UMR CNRS 7198, 54011 Nancy, France;4. Institut Jean Lamour, Université de Lorraine, UMR CNRS 7198, 54011 Nancy, France |
| Abstract: | We demonstrate herein an all-optical switch based on stimuli-responsive and photochromic-free metal–organic framework (HKUST-1). Ultrafast near-infrared laser pulses stimulate a reversible 0.4 eV blue shift of the absorption band with up to 200 s−1 rate due to dehydration and concomitant shrinking of the structure-forming [Cu2C4O8] cages of HKUST-1. Such light-induced switching enables the remote modulation of intensities of photoluminescence of single crystals of HKUST-1 as well visible radiation passing through the crystal by 2 order of magnitude. This opens up the possibility of utilyzing stimuli-responsive MOFs for all-optical data processing devices. |
| Keywords: | all-optical switch HKUST-1 metal–organic frameworks photoswitching |