Open-circuit voltage of a Schottky-barrier solar cell

The open-circuit voltage developed across a Schottky-barrier solar cell is calculated in the presence of monochromatic light. The limitations of previous treatments are brought out. Our analysis differs from the earlier ones in using appropriate boundary conditions. A tractable expression for the open-circuit voltage is obtained assuming low-level injection conditions, which is met by average solar radiation in AM0 and AM1 conditions.