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.









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