Study by in situ UV/vis spectroelectrochemistry of the oxidation of polysulfides at a GaAs electrode

摘要

Over the past decades,electrochemical sulfuration of semiconductors (II-VI and III-V) was developed in order to passivate their surface.The process is based on the oxidation/dissolution of the SC,followed by the precipitation on its surface of a sulfide (cation+HS~--> cation-S+H~+).