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.









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