Abstract
Due to its high purity (99.9995%) liquid ammonia (NH3 liq.) has found a distinguished place in electrochemical studies of III-V semiconductors (III-Vsc) at low temperature (-55°C and atmospheric preasure). NH3 liq. provides interfacial electrochemistry in an original environment strongly different from the aqueous medium. However, in both solvents, the concepts of interfacial electrochemistry are the same onto III-Vsc. The contribution of NH3 liq. is significant in the understanding of fundamental electrochemical reactions such as hydrogen evolution and oxygen photo-reduction mechanism on III-Vsc (InP and GaAs). The aim of this article is to describe why NH3 liq. is a powerful solvent to understand charge transfer mechanisms at the interface III-Vsc/electrolyte.
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