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.









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