Photoelectrochemical behavior of LaCoO3 ceramic and single crystal

Abstract The photoelectrochemical behavior of ceramic and single crystal type LaCoO 3 has been investigated. Potentiodynamic sweepings give rise to n-p reversible transitions. Correlations have been established between electrochemical, photoetectrochemical, conductivity measurements and action spectra. Schematic band diagrams have been deduced for n- and p-type material.