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.









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