UniFEL 材料研究有前途方法跨国科学教育中心
简介
As part of the program 5-100, the international scientific and education center for methods of advanced materials research UniFEL was established in ITMO in order to develop complex techniques for study of novel functional nanomaterials with high spatial, energy and time resolution in preparation for experiments at X-ray free electron lasers, mainly at the European XFEL facility that is located in Hamburg (Germany). Using X-ray free-electron laser (European XFEL facility), which provides high density of excitation (more than 1023 W / cm2) and short duration of pulses (of the order of 10 fs), opens up new possibilities for analyzing the structure and electronic spectrum of nano-objects with atomic resolution and high energy resolution, respectively, and also for the study of dynamic processes in the bulk and at the surface of nanoparticles with a high temporal resolution. In addition, high power X-ray source enables us to study the dynamics of the processes, depending on the energy of X-ray photons.
The agreement on cooperation between ITMO and the Technical University of Freiberg (Germany) was signed to implement the project with the purpose to conduct collaborative research including preparation of materials for further experiments at XFELs and development of bilateral educational programs. Heads of the center are Professor Romanov A.E. (on the side of ITMO) and Professor Molodtsov S.L. (on the side of TU Freiberg), who is also the Scientific Director of the European XFEL. Studies of structural properties of nano-objects are carried out in close cooperation with the Joint Research Centre (JRC) «Materials science and diagnostics in advanced technologies" (Ioffe institute, St. Petersburg).
In its activities UniFEL has the following objectives:
· Obtaining the most complete and quantitatively accurate information on basic physical and physical-chemical parameters and characteristics on all stages of the technological process of producing nanostructures (elemental, phase and chemical composition, parameters of the real crystal and electronic structure, the geometric parameters, defects);
· Obtaining data on the atomic structure, geometric shape and size, elemental and phase composition and defects of the electronic structure of materials based on the detection and analysis of signals arising from the interaction of electrons and X-ray beams with nanosystems.
· Studying dynamic processes in the bulk and on the surface of the nanoparticles with high temporal resolution, depending on the energy of the X-ray quantum.
· Organization of international educational programs on methods for materials research.
研究方向
The purpose of research is to develop new methods of studying the structure and functional properties of nanosystems with high spatial, energy and time resolution using a set of methods, including X-ray Free Electron Laser (european and other facilities of XFEL).
Development of methods for diagnostic and study defects in crystal structure of bulk crystals and epitaxial multilayer structures based on wide bandgap semiconductor materials (silicon carbide, gallium oxide, gallium nitride);
Development of methods for diagnostic and study of structure of electron spectrum and physical properties of the grain boundaries in graphene structures formed on different substrates. Studying methods of functionalization of graphene nanosystems.
Development of methods for diagnostic and study of structure of electron spectrum and physical properties of metallic, hybrid and oxide nanoparticles, nanowires, nano-layers and coatings on their basis;
Development of methods for diagnostic and study of effects of interface magnetism for metal atoms in nanosystems, based on diamond and metal nanoparticles. This study aimed at solving fundamental scientific objective - establishing the nature of the magnetic phase transitions in metals in the two-dimensional case. Planned experimental study of the structural and magnetic properties of a wide class of magnetic nanosystems: island films of metals and non-magnetic carbon nanoparticles coated with metal ions.
Development of methods for diagnostic and study of structural transitions in magnetic, including materials derived from transition metals.
Development of methods for diagnostic and study of electronic and atomic structure of materials obtained on the basis biological and organic systems with the inclusion of metallic and oxide components.
联系方式
Lomonosova, 9, Saint-Petersburg, 191002
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Pho +7(812)406-80-67