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.









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