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Information × Registration Number 0211U009706, 0107U002165 , R & D reports Title Nanophysics of quantum-sized and low-dimensional structures including those on solid surfaces and in metal-organics, polymer, liquid-crystal systems; molecular nanoelectronics. popup.stage_title Head Naumovets A.G., Registration Date 09-12-2011 Organization Institute of physics NASU popup.description2 The report present main results obtained during realization of the project. The aim was the investigation of specifics of physical processes in nanoscale objects of different nature and their ensembles - nanoparticles and nanolayers of metals, semiconductors and insulators which are placed on surfaces or in volume of various media. A theory of optical properties of nanoclusters has been developed with taking into account a tensor character of optical conductivity. This fact permits using the theory for description of properties of metal clusters of various shapes and of the sizes both smaller and larger than the electron mean free path. Planar nanosources of light based on Co microparticles oriented in magnetic field and covered by organometallic nanocomposite have been realized. A general conclusion has been formulated that refractory metal oxides are formed in the adsorption phase rather then in the thermal desorption stage. The magnetooptical properties of (Si,Mn)C and (SiFe)C monolayers created by implantation of Mn and/or Fe ions in silicon carbide have been investigated. It has been experimentally confirmed that ionization energy of shallow acceptor impurities in quantum wells of semiconductor heterostructures is lower than ionization energy of the impurity in volume of the layer material which forms the quantum well. The possibility to increase the radiation stability of solar cells based on GaAs made by molecular-beam epitaxy has been found. For the first time a giant optical nonlinearity of the third order in nanoisland films of Au and Pd has been recorded. This nonlinearity is by a factor OF 103 higher than the fast nonlinearity in 3D semiconductors. A high-performance photo-voltaic element has been created on planar heterostructure of sub-phthalocyanine/fullerene. It is shown that incorporation of magnetic nanoparticles (LC) in the form of carbon nanotubes filled with ? - iron in to a liquid crystal leads to supersensitivity of LC to magnetic field. For studying the large-scale movements in albumenous macromolecules a new concept of dynamic domains in which atoms make rather coordinated movements has been proposed. Basing on the results of the project, the following practical recommendations have been formulated: To use the theoretically predicted strong dependence of optical properties of nanoclusters on the size and shape of the clusters for controlling these properties. To deposit ferromagnetic particles in orienting magnetic field for more controllable formation of the current channels and the electroluminescence centers. The data obtained on the process of molybdenum oxidation can be used for creation of catalysts to neutralize motor transport and industry emissions. Implantation of Mn ions in silicon carbide gives the possibility to intensify by a factor of 103 the effect of Faraday rotation of light polarization plane. Spectral sensitivity of detectors of electromagnetic radiation can be raised by changing the quantum well width and the position of impurity ?-layer in it. To increase the radiation stablility of solar elements, one can use the effect of heating of electrons. Nanoisland films are promising for creation of thin lenses with variable focal length and deflectors of laser beams. Optimization of layers, thickness permits essential raising the efficiency of photo-voltaic elements based on organic nanoheterostructures. The using of magnetic nanotubes as additives to liquid crystals opens ample opportunities for the control of LQ-properties. The methods, of modeling of large-scale movements and conductivity of ionic channels in large biological molecules are recommended for applications in a wide class of biophysical problems. Product Description popup.authors Бондар Михайло Віталійович Бродин Михайло Семенович Данильченко Борис Олександрович Наумовець Антон Григорович Порошин Володимир Миколайович Птушинський Юрій Григорович Рєзніков Юрій Олександрович Рябченко Сергій Михайлович Томчук Петро Михайлович Харкянен Валерій Миколайович popup.nrat_date 2020-04-02 Close