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.









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