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.









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