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