Initial measurements from the prepared porous silicon capacitors reveal that high capacitances can be achieved, contrary to previously reported early studies [1, 2]. Unpassivated silicon structures, however are not stable over a long period of time due to oxidation/reduction reactions with the electrolyte, resulting in rapidly decreasing capacitance over repeated charge-discharge cycles. Our work has focused on optimizing the porous silicon nanostructure (i.e. surface area, pore morphology, etc.) and passivating the surfaces. As part of this, the pore sizes and size distributions were optimized and modeled to make the total surface area high to obtain large capacitance.
 Rowlands, S. E., Latham, R. J. & Schlindwein, W. S. Supercapacitor devices using porous silicon electrodes. Ionics 5, 144–149 (1999).
 S. Desplobain, G. Gautier, J. Semai, L. Ventura and M. Roy, "Investigations on porous silicon as electrode material in electrochemical capacitors", Phys. Stat. Sol. (c), 4, 2180, 2007.