2 article(s) from Pennelli, Giovanni
Figure 1: (Left) Schematics of the fabrication process and (right) SEM images of silicon nanowire forests. Th...
Figure 2: Left: sketch of the measurement apparatus. Right: thermal resistance of several samples as a functi...
Figure 3: Measured voltage drop (Seebeck voltage ΔVseebeck) as a function of the temperature difference betwe...
Figure 4: Numerical simulations of phosphorous diffusion in silicon nanowires. The doping concentration is ma...
Figure 1: Sketch of a piece of semiconducting material, placed between a hot source (heater, temperature TH) ...
Figure 2: a) Sketch of a thermoelectric generator: two pieces of semiconducting materials with different (opp...
Figure 3: Efficiency of a thermoelectric generator for different values of the material-dependent parameter Z...
Figure 4: The Z parameter is reported as a function of temperature for few most common TE materials (n type)....
Figure 5: Panel (a): Seebeck coefficient in silicon nanowires with triangular cross section as a function of ...
Figure 6: Electrical conductivity σ of a silicon nanowire as a function of the nanowire width (triangular cro...
Figure 7: Sketch of a top-down fabrication process for a device based on a silicon nanowire.
Figure 8: A composition of SEM images of a device, based on a single silicon nanowire positioned between four...
Figure 9: Sketches of the fabrication and mechanical clamping of a macroscopic thermoelectric generator based...
Figure 10: Composition of SEM images of a large area network, made of silicon nanowires 3 μm long.
Figure 11: Composition of SEM images of a large area network with a different texture, with respect to Figure 10. An hu...
Figure 12: Sketch of the fabrication of vertical nanowire arrays. A sketch of a thermoelectric generator, base...
Figure 13: SEM image showing a top view of very deep trenches in silicon, obtained by MaCE. Patterned gold str...
Figure 14: The SEM image on the left shows a cross section of vertical structures, obtained by MaCE etching: P...
Figure 15: SEM image of a silicon nanowire “forest” (cross-section), fabricated by MaCE of silicon in an HF/Ag...