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Photochromic Free MOF‐Based Near‐Infrared Optical Switch
Author(s) -
Kulachenkov Nikita K.,
Sun Dapeng,
Mezenov Yuri A.,
Yankin Andrei N.,
Rzhevskiy Sergey,
Dyachuk Vyacheslav,
Nominé Alexandre,
Medjahdi Ghouti,
Pidko Evgeny A.,
Milichko Valentin A.
Publication year - 2020
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.202004293
Subject(s) - photochromism , photoluminescence , ultrashort pulse , infrared , optoelectronics , materials science , absorption (acoustics) , laser , optical switch , modulation (music) , blueshift , visible spectrum , near infrared spectroscopy , chemistry , photochemistry , optics , nanotechnology , philosophy , physics , composite material , aesthetics
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 [Cu 2 C 4 O 8 ] 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.