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GREMAN is a research laboratory on materials, microelectronics, acoustics and nanotechnology of the University of Tours, CNRS and INSA Centre Val de Loire created January 1st 2012 by the merging of several groups located in Tours and Blois, France. Its expertise covers the value chain from materials science up to devices (components, sensors, transducers ...) and their integration. Fields such as electrical energy efficiency, power microelectronics and the use of ultrasonic waves are particularly targeted, for applications in industry, health and nomadic apparatus.

The activities of GREMAN are focused on four priority topics :

  • Functional oxides for energy efficiency: combinatory synthesis and nanostructuration.
  • Magnetic and optical properties of ferroic and electronic correlation materials.
  • Ultrasonic instrumentation and characterisation.
  • Energy, component, systems, microelectronics.









Piezoelectric materials ZnO Phononic crystals Thermal conductivity Ceramics Piézoélectricité CCTO Porous materials Magnetization dynamics Thin film deposition Mechanical properties Nanoparticles High pressure Modélisation Zinc oxide Electronic structure Precipitation Demand side management Modeling Sputtering Atomic force microscopy Lamb waves Raman scattering Condensed matter properties Etching Récupération d'énergie ZnO nanowires Ultrasound Capacitance Ultrasonic transducer Materials Elasticity Mesoporous silicon Numerical modeling Piezoelectric properties Transducers Diffraction optics Raman spectroscopy Attractiveness of education Micromachining Nanogenerator Multiferroics Silicon Crystal growth Thermoelectrics Oxides Electrochemical etching Porous silicon Smart grid Colossal permittivity Ferroelectrics Phase transitions MEMS Spark plasma sintering Ultrasons Acoustics Composites Electrical resistivity Electrodes Dielectric properties Layered compounds Individual housing Chemical vapor deposition Electrical properties Thin films Imaging Nanogénérateurs piézoélectriques Reliability Electron microscopy Disperse systems CMUT Microwave frequency Piezoelectric COVID-19 Organic solar cell Nanowires Hyperbolic law LPCVD Crystallography Hydrothermal synthesis Thin film growth Higher education Nanogenerators Ferroelectricity Silicon devices 3C–SiC Time-dependent density functional theory X-ray diffraction Light diffraction Characterization Epitaxy Energy harvesting Strain Piezoelectric nanogenerators Piezoelectricity Crystal structure Domain walls Finite element method Doping Resistive switching






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