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Multifunctional composite materials of semimetals and semiconductors based on nanotemplates and nanocapillaries for thermoelectric and photovoltaic devices, spintronics, and photonics

Code: 11.817.05.09A
Title: Multifunctional composite materials of semimetals and semiconductors based on nanotemplates and nanocapillaries for thermoelectric and photovoltaic devices, spintronics, and photonics
Programme: Institutional Projects (Supreme Council for Science and Technological Development)
Execution period: 2011-2014
Institutions: Ghitu Institute of Electronic Engineering and Nanotechnologies, ASM
Project Leader: Nikolaeva Albina, dr. hab., associated professor (docent)
Participants: Laboratory of Electronics of Low Dimensional StructuresLaboratory of Nanotechnologies
Keywords: Nanocomposites, nanostructures, nanotemplates, nanowires, Bi, ZnO, GaP.


Summary:

The objective of the project is solving some key problems in modern physics of low-dimensional structures in scientific, technological, and applied aspects. Such new concepts as the quantum interference effects, Berry phase, "topological insulator", nonlinear optical effects, in particular, THz radiation, are associated with the most advanced trends in nanoelectronics, i.e., spintronics and photonics; they will be developed and studied on the basis of the crucially new technologies for preparing multifunctional nanocomposites that are designed in the project. The main objectives of the project are connected with the development of advanced technologies for preparing low-dimensional structures of semiconductors and semimetals to design new components, which form the basis of a new generation of electronic devices, photonics, and spintronics. To achieve these goals, we will use advanced technological methods: magnetron deposition of semiconductor films, deposition of organometallic components, chemical and electrochemical deposition. The morphology of nanocomposites will be studied by electron and atomic force microscopy using a chemical analysis of the materials. The quality and properties of nanocomposite materials and structures will be studied by micro-Raman scattering, radiation spectroscopy, and oscillation effects; thermoelectric and galvanomagnetic methods will be used to estimate the thermoelectric efficiency of low-dimensional materials, including nanowires. Based on the developed technologies for preparing composite multifunctional materials, we will propose new versions of operation of devices based on semimetals Bi, semiconductors Bi2Se3, Bi2Te3, Bi1-xSbx, GaP, InP, and ZnO for using in thermoelectricity, spintronics, photonics, optoelectronics, photovoltaics, and sensorics.