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.









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