A new advance in the study of p-type silicon/electrolyte interface by electrochemical impedance spectroscopy

Fabrication, Boron Leaching, and Electrochemical Impedance Spectroscopy of Nanoporous P-Type Silicon

“…Such an increase in the Cdl values can be ascribed to the migration of more boron ions, the surface hydrophilicity, and the presence of more accumulated pores which is in agreement with the SEM observations. A similar observation was reported by Husairi et al for the PS formed by photoelectrochemical etching under various current densities [62,63]. The bode plots of samples at different leaching time was presented in Fig.…”

Semiconductor-to-Metal-like Behavior of Si with Dopant Concentration—An Electrochemical Investigation and Illustration with Surface Hydride Formation and Hydrogen Evolution Reaction

“…Electrochemical Characterization. The electrochemical characterization was carried out in a custom-made three-electrode configuration similar to the rotating disk electrode (RDE) system using a Teflon cell of 100 cm 3 . The measurements were conducted using a Wave Driver 200 Bipotentiostat/Galvanostat system from Pine Research Instrumentation, USA.…”

“…The electrochemistry of the semiconductor/electrolyte interface has a wide range of applications in photoelectrochemical cells (PEC), semiconductor technology, photoplating, and electrochemical energy-storage devices. − Among the semiconductors, Si is the most investigated and anodic processes such as dissolution, passivation, electrochemical etching, and electrochemical oscillations on the Si electrode relevant to the semiconductor technology are widely reported. − On the other hand, cathodic processes, such as hydride formation and hydrogen evolution reaction (HER), are not well-characterized and are much less understood. These processes are highly relevant to PEC, photoplating, and Si-based electrochemical energy storage in lithium-ion batteries. ,− The research activities on such cathodic reactions on Si have significantly increased in the recent years.…”

Diffusion-restricted electrodeposition of platinum on solid carbon paste for electrocatalytic oxidation of methanol

“…Oxidative removal of carbonaceous intermediates leads to regeneration of surface active sites; the resulting relaxation phenomena yields an increase in potential followed by an increase in current with a phase delay, such that the potential-dependent change in capacitance resembles an inductance [40,42]. The inductive loop previously reported for a p-type silicon/electrolyte interface was similarly assigned to growth of the effective reaction area, as a consequence of substrate etching and surface roughening [43].…”