Services
Growth of advanced materials Growth of protective coatings for improving anticorrosion and/or mechanical properties of metal surfaces using industrially affordable technologies Synthesis of thermoelectric materials for special applications Design of modern polycrystalline dental ceramics Synthesis of bioactive glasses, mesoporous nanoparticles for controllable and extended drug release, nanoparticles and nanocomposites for biomedical implants Synthesis and study of hybrid biomimetic scaffolds Structural and morphological characterization X-ray diffraction (XRD): Phase identification, raw materials recognition, estimation of structural purity, crystallinity, average crystal size, crystal phase quantification Elemental analysis by X-ray photoelectron spectroscopy (XPS): chemical bonding analysis, depth profile elemental analysis, XPS chemical mapping, thickness/stoichiometry-dependent elemental analysis and/or chemical valence analysis. XPS/XAES spectroscopy combined with Argon ions etching Scanning electron microscopy (SEM-EDS): Morphology study and imaging, plane view cross section view, elemental analysis with linear scan and mapping Spectroscopic characterization Materials characterization, identification of chemical groups, colorimetry, estimation of optic gap using Infrared spectroscopy (FTIR), micro-Infrared spectroscopy (μ-FTIR) and UV-Vis Spectrophotometry. Studied spectra range NIR (9000-4000 cm -1 ), MIR (4000-400 cm -1 ), FIR (400- 80 cm -1 ) and UV-Vis (200-900 nm) Thermal characterization-Thermal analysis Differential scanning calorimetry (DSC): Determination of glass transition temperature, melting, crystallization, polymerization and kinetic study of phase transitions in the temperature range -150- 600 oC. Real-time studies of the different phases of coating formation on metallic surfaces Thermogravimetric analysis (TG-DTA): Determination of thermal stability (decomposition initiation, mass loss), kinetic study of decomposition stages, identification of phase transitions, oxidation studies (oxidation launch temperature, oxidation rate for varied temperature or at constant temperature) Electric-magnetic characterization and study of materials Electric resistance measurement of metals, organic and inorganic semiconductors with Van der Pauw method (10 -6 Ωcm-10 3 Ωcm) Mobility measurement of organic and inorganic materials and micro/nano electronic devices (diodes, transistors, heterojunctions) Spatial carriers’ density determination in materials and devices (thin and ultrathin films, multilayers) Multiple semiconductor carriers’ determination and contribution in mobility Magnetoresistivity measurement in materials and devices (thin and ultrathin films, multilayers) Measurements of anisotropy phenomena during electric transport of carriers (electronic transition metal-semiconductor and semiconductor-insulator) Study and electric characterization of advanced semiconductor devices Electric characterization of micro and nano devices Electric characterization of micro and nano devices by measuring I-V and C-V correlation and the electronic noise at low frequencies (LFN). Reliability evaluation of devices through static and dynamic electric stress tests. TCAD simulations and development of compact model devices for micro and nano electronics Study, design and optimization of modern 2D and 3D micro/nano electronic devices through TCAD simulations. Development of detailed-compact models describing and predicting current, conductance, capacitance and variability of electronic devices Studies on cultural heritage works Archaeometry analysis in art and cultural heritage works by using scanning electron microscopy, spectroscopic techniques, methods of thermal analysis and X-rays. Methods are combined to receive an integrated information output. Characterization and identification of pigments composition, painting substrates and geological samples Composition and annealing temperatures of ceramics Determination of fibers and pigments for ceramics dyes Properties evaluation and estimation for conservation materials Evaluation of the conditions of old maps, parchments and leather works Estimations on the surface morphology, the composition and the conservation conditions of coins and other metallic works
Faculty of Sciences, Aristotle University of Thessaloniki, 54124 University Campus, Thessaloniki +30 2310 998066 gvourlia@auth.gr CONTACT