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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.









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