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The 3D Design of Multifunctional Silver Nanoparticle Assemblies Embedded in Dielectrics
Author(s) -
Bonafos Caroline,
Bayle Maxime,
Benzo Patrizio,
Pugliara Alessandro,
Makasheva Kremena,
Carrada Marzia,
Chery Nicolas,
Balout Hilal,
Benoit Magali,
Tarrat Nathalie,
Benassayag Gérard,
Pécassou Béatrice,
Navarro Enrique,
Carles Robert
Publication year - 2020
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.201900619
Subject(s) - materials science , dielectric , plasmon , surface plasmon resonance , nanotechnology , photovoltaics , silver nanoparticle , optoelectronics , photothermal therapy , graphene , nanocomposite , nanoparticle , photovoltaic system , ecology , biology
Many applications as optical spectroscopy, photothermal therapy, photovoltaics, or photocatalysis take advantage of the localized surface plasmon resonance of noble metal nanoparticles (NPs). Among them, AgNPs are multifunctional nano‐objects that can be used not only as efficient plasmonic antennae but also as electron reservoirs for charge transfer or ion reservoirs with strong biocide activity. Herein, the 10 years’ efforts on the safe‐by‐design synthesis of multifunctional nanocomposites consisting of 3D patterns of small AgNPs embedded in dielectrics are presented by coupling low‐energy ion implantation and stencil masking techniques. Their multifunctional coupling with different objects deposited on top of the dielectric surface is also presented through three examples. The twofold role of this single plane of AgNPs as the embedded plasmonic enhancer and charge carrier reservoir is first tested on few‐layer graphene deposited in specific areas at a controlled nanometer distance from the AgNPs. These buried AgNPs are also coupled to light emitters coimplanted in the dielectric matrix in specific regions, showing light emission enhancement. Finally, these AgNPs also provide an efficient biocide activity on green algae when submerged in water, with the amount of Ag + release simply controlled by the thickness of the silica cover layer.