Vol. 6, №1, 2014

SERGEY PAVLOVICH GUBIN - 75

INORGANIC NANOPARTICLES AND NANOSTRUCTURES IN PLANAR NANOSYSTEMS
Khomutov Gennady B.
M.V. Lomonosov Moscow State University, Faculty of Physics, http://www.phys.msu.ru
1/2 Leninskie gory, 119991 Moscow, Russian Federation
gbk@mail.ru

That contribution represents a short overview of the works of S.P. Gubin and colleagues related to creation and study of principally new planar nanocomposite systems – organized monolayer and multilayer ensembles of clusters, nanoparticles and nanostructures in ordered planar matrix of amphiphilic molecule Langmuir-Blodgett films. The biomimetic single-electron tunneling nanosystems based on the Langmuir-Blodgett films with ensembles of cluster molecules of general formula MnLm where M- metal (Au, Pd, Pt, Ag, Fe), L- ligand incorporated into the film matrix were formed and studied for the first time in those works with the use of method based on incorporation of presynthesized inorganic clusters and nanoparticles into highly-organized monomolecular matrix. Effects of correlated electron tunneling were discovered in those systems at room temperature. The single electron tunneling transistor working at room temperature was realized for the fist time on the base of such planar nanostructures. Those results establish the base for creation of principally new nanoelectronic digital and analogous systems for information processing and storage in which single electrons are information carrier units and atomically-identical absolutely reproducible functional units are working active elements. S.P. Gubin introduced the idea of a novel approach to creation of planar organic-inoragnic nanostructures and nanofilm materials based on the physical spatial restriction of the reaction area via formation of a layer of insoluble precursor molecules on the surface of a liquid phase in contact with a gaseous phase, and in carrying out of inorganic nano-phase quasi-two-dimensional synthesis processes in the ultrathin anisotropic (ultimately two-dimensional monolayer) reaction system. Such a system can include ligand molecules (insoluble amphiphilic compounds and components of bulk liquid phase) and photochemical, red-ox and other precursor decomposition reactions can be exploited for initiation of inorganic nano-phase nucleation and growth processes. Organized planar ensembles of noble metal (Au, Pd) and iron oxide nanoparticles and novel nanostructures were obtained with the use of that approach, and effects of self-organization, effects of various ligands on the morphology of inorganic nano-phase formed in anisotropic quasi-two-dimensional system along with effects of external magnetic field on morphology of formed magnetic iron oxide nanostructures were studied. These works allowed to obtain novel information about physical and chemical factors determining the mechanisms of nano-scale structure-formation processes which is important for development of efficient methods for creation of nanomaterials and nanosystems with predetermined and unique structural and functional characteristics.

Keywords: planar nanosystems, monolayer film, Langmuir-Blodgett films, nanoparticles, nanostructures, synthesis, structure, precious metals, gold, palladium, iron oxides, transmission electron microscopy (TEM), probe microscopy.

UDC 544.77, 544.012, 546.05, 53.098

Bibliography – 41 references
Received 13.12.2012

RENSIT, 2012, 4(2):58-70
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