Mesoporous silicon Transducers ZnO nanowires Characterization Domain wall Colossal permittivity Ferroelectrics Doping Electrical resistivity High frequency Thin film growth Epitaxy Imaging Ohmic contact Hyperbolic law Nanoparticles Energy harvesting Simulation Piezoelectric materials CMUT Thermal conductivity Capacitors Spark plasma sintering Porous silicon Nanogenerators Layered compounds Diffraction optics Phase transitions Piezoelectricity Condensed matter properties High pressure Nanofils Modeling Zinc oxide Numerical modeling MEMS COVID-19 Finite element method Attractiveness of education Organic solar cell Barium titanate Nanowires Electrochemical etching Atomic force microscopy Ferroelectricity Ultrasound Crystal structure X-ray diffraction Materials Electrical conductivity Piézoélectricité Dielectric Gallium nitride Mechanical properties Demand side management ZnO Thin films Individual housing Higher education Microstructure Electrodes Modélisation CCTO Crystallography Lead-free Impedance matching Pulsed laser deposition Capacitance Ceramics Récupération d'énergie Domain walls Magnetization dynamics Multiferroics LPCVD Etching Laser annealing Electrical properties High-frequency Impedance spectroscopy Electron microscopy Dielectric properties Crystal growth Electronic structure Microwave frequency Elasticity Composites Thin film Nanogénérateurs piézoélectriques Silicon Piezoelectric Annealing Hyperbolic analysis Light diffraction Acoustics Hydrothermal synthesis Chemical vapor deposition Micromachining Nanogenerator Oxides Disperse systems