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.









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