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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.




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






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