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.









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