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.









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