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Ultrafast Melting of Metal–Organic Frameworks for Advanced Nanophotonics
Author(s) -
Kulachenkov Nikita K.,
Bruyere Stéphanie,
Sapchenko Sergey A.,
Mezenov Yuri A.,
Sun Dapeng,
Krasilin Andrei A.,
Nominé Alexandre,
Ghanbaja Jaâfar,
Belmonte Thierry,
Fedin Vladimir P.,
Pidko Evgeny A.,
Milichko Valentin A.
Publication year - 2020
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201908292
Subject(s) - materials science , amorphous solid , nanotechnology , nanophotonics , nanoclusters , femtosecond , luminescence , ultrashort pulse , oxide , optoelectronics , laser , organic chemistry , optics , chemistry , physics , metallurgy
The conversion of metal–organic frameworks (MOFs) into derivatives with a well‐defined shape and composition is considered a reliable way to produce efficient catalysts and energy capacitors at the nanometer scale. Yet, approaches based on conventional melting of MOFs provide the derivatives such as amorphous carbon, metal oxides, or metallic nanoclusters with an appropriate morphology. Here ultrafast melting of MOFs is utilized by femtosecond laser pulses to produce a new generation of derivatives with complex morphology and enhanced nonlinear optical response. It is revealed that such a nonequilibrium process allows conversion of interpenetrated 3D MOFs comprising flexible ligands into well‐organized spheres with a metal oxide dendrite core and amorphous organic shell. The ability to produce such derivatives with a complex morphology is directly dependent on the electronic structure, crystal density, ligand flexibility, and morphology of initial MOFs. An enhanced second harmonic generation and three‐photon luminescence are also demonstrated due to the resonant interaction of 100–1000 nm spherical derivatives with light. The results obtained are in the favor of new approaches for melting special types of MOFs for nonlinear nanophotonics.