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.









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