Collect. Czech. Chem. Commun. 1998, 63, 75-84

Effect of the Crystallographic Orientation on Photovoltaic Properties of p-GaP Electrodes

Ivo Jakubeca, Jiří Vondráka, Jana Bludskáa and Ladislav Pekárekb

a Institute of Inorganic Chemistry, Academy of Sciences of the Czech Republic, 160 00 Prague 6, Czech Republic
b Institute of Physics, Academy of Sciences of the Czech Republic, 180 40 Prague 8, Czech Republic


Hydrogen evolution from aqueous solutions on the p-gallium phosphide electrodes was studied by means of cyclic voltammetry and impedance spectroscopy. The semiconductor properties of the material, and consequently the efficiency of water photolysis, are affected by the crystallographic orientation of the photocathode surface.

Keywords: p-Gallium phosphide; Photoelectrochemistry; Water photolysis; Semiconductors.