Study the size and distribution of thin Nano porous film of silicon substrate through chemo-thermal treatment for dry fuel cell application

In this work, nanoporous silicon substrate is optimized and its utilization is shown through proposed porous silicon based fuel cell fabrication. Nanoporous silicon is made by electrochemical etching to form proton exchange membrane in fuel cell. Various properties of nanoporous silicon are observed such as photoluminescence, hydrophobic behavior demonstrating contact angles up to 143°. The improvement of pore quality is shown through x-ray diffraction measurement (XRD), Raman spectroscopy, reflectance measurement and surface quality is observed through the imaging of atomic force microscopy (AFM) & scanning electron microscopy (SEM). The electrical behavior is observed through the measurement of polarization (current and voltage) of fuel cell.