Optical Properties of Thin Gold Films Applied to Schottky Barrier Solar Cells

摘要

The Schottky barrier solar cell is considered a possible candidate for converting solar to electrical energy both for space and terrestrial applications. Knowledge of the optical constants of the ultrathin metal film used in the cell is essential for analyzing and designing higher efficiency Schottkynbarrier cells. In this work the optical constants of 7. 5-nm (75-A) gold films on gallium arsenide have been obtained. In addition, the absolute collection efficiency of Schottky barrier solar cell3 has been determined from measured spectral response and optical constants of the gold film.