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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.









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






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