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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 |
| Institution: | 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 |