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.









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