TY - JOUR

T1 - Ultrafast Melting of Metal–Organic Frameworks for Advanced Nanophotonics

AU - Kulachenkov, Nikita K.

AU - Bruyere, Stéphanie

AU - Sapchenko, Sergey A.

AU - Mezenov, Yuri A.

AU - Sun, Dapeng

AU - Krasilin, Andrei A.

AU - Nominé, Alexandre

AU - Ghanbaja, Jaâfar

AU - Belmonte, Thierry

AU - Fedin, Vladimir P.

AU - Pidko, Evgeny A.

AU - Milichko, Valentin A.

PY - 2020/2/1

Y1 - 2020/2/1

N2 - 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.

AB - 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.

KW - derivatives

KW - femtosecond laser

KW - metal–organic framework

KW - nanophotonics

KW - ultrafast melting

KW - NANOPARTICLES

KW - LIQUID

KW - LIGHT

KW - GENERATION

KW - metal-organic framework

KW - GLASSES

UR - http://www.scopus.com/inward/record.url?scp=85076377520&partnerID=8YFLogxK

U2 - 10.1002/adfm.201908292

DO - 10.1002/adfm.201908292

M3 - Article

AN - SCOPUS:85076377520

VL - 30

JO - Advanced Functional Materials

JF - Advanced Functional Materials

SN - 1616-301X

IS - 7

M1 - 1908292

ER -