MAGNETICALLY MODIFIED SEMICONDUCTOR ELECTRODES FOR PHOTOVOLTAICS, PHOTOELECTROSYNTHESIS, AND PHOTOCATALYSIS

摘要

A device for hydrogen gas production comprising a working electrode comprising a magnetically-modified semiconductor electrode. Onset of hydrogen gas evolution for the device, measured at a current density of about 0.4 mA/cm², occurs at an overpotential of no more than about −1200 mV, or no more than about −600 mV, or no more than about −500 mV. The magnetically-modified semiconductor working electrode provides the device with a photoconversion efficiency of at least about 0.1%, or at least about 1.6%, or at least about 6.2%. Other applications include photovoltaics, photoelectrochemical synthesis, and photocatalysis.