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.









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