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.









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