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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 five priority topics :

  • Functional oxides for energy efficiency: combinatory synthesis and nanostructuration.
  • Magnetic and optical properties of ferroic and electronic correlation materials.
  • Novel materials and components for power and RF microelectronics.
  • Piezoelectric and capacitive micronanosystems for ultrasonic transducers and energy conversion.
  • Ultrasonic methods and instrumentation for characterisation of complex media.









Composites Acoustic waves Reliability Multiferroics Raman spectroscopy Condensed matter properties Dielectric properties Resistive switching Numerical modeling Thermal conductivity Electrodes Adsorption 3C–SiC Atomistic molecular dynamics Ceramics Aluminium LPCVD AC switch Epitaxy Barium titanate X-ray diffraction Carbides Nanowires Imaging Thermoelectrics CCTO ZnO ZnO nanowires Oxides Colossal permittivity Smart grid Organic solar cell Ultrasound Piezoelectric properties Zinc oxide Silicon devices Chemical synthesis Crystal structure Piézoélectricité Electrochemical etching Piezoelectric materials Thin film growth Microwave frequency Micromachining Nanoparticles Piezoelectricity Doping Elasticity Modeling Chemical vapor deposition Thin films Boundary value problems Disperse systems Capacitors Collaborative framework Electron microscopy Cost of electricity consumption Characterization Light diffraction Porous silicon Demand side management Materials Acoustics Ferroelectricity Sputtering Ferroelectrics Piezoelectric Electrical properties Mechanical properties Diffraction optics Time-dependent density functional theory Silicon Phase transitions Energy harvesting Annealing Spark plasma sintering High pressure Layered compounds Porous materials Capacitance Thin film deposition Crystal growth Individual housing Etching Crystallography Atomic force microscopy Raman scattering Nanogenerator Electrical resistivity CMUT Composite Active filters Hyperbolic law Strain Mesoporous silicon Domain walls Attractiveness of education Transducers Electronic structure Precipitation