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.









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