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.









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