The photoelectrical properties of bilateral photoelectrochemical cell with nGaAs photo-electrode

Abstract

The conversion of solar energy in electrical one is realized by solar cells as a result of absorption of solar energy and the separation of the photoexcited carriers by potential barriers in different solid state structures such as p-n junctions, Schottky diodes, heterojunctions, MIS and SIS structures. Also, the photoelectrochemicall cells are studied intensively, where the processes described above are on the solid-liquid interface, in other words on the electrolyte-semiconductor interface. The absence of expensive electrovacuum technologies and high-temperature processes in the fabrication of photoelectrochemical cells (PEC) is an important advantage. Different semiconductor materials and electrolyte based redox couples were used for the fabrication of PEC, but a big interest presents the photoelectrochemical cells with the III-V compounds semiconductors as photoelectrodes.