SiGe: a key to unlocking the potential of solar cells

Abstract

Research and development of silicon germanium (SiGe) has been under way for well over a decade. A surprising number of research institutes have been developing photovoltaic devices based on the SiGe alloy system for almost as long. While the technology is still some way off making a full-scale commercial impact, its capability remains as impressive as ever. SiGe stands as a highly promising means to unlock the fullest potential of thin-film silicon photovoltaics.