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