This research develops low-cost gallium arsenide solar-cell manufacturing to accelerate global decarbonization. Gallium arsenide absorbs light far more efficiently than silicon, potentially enabling cheaper and less capital-intensive solar production. By improving scalable manufacturing methods, the work aims to reduce the cost of expanding renewable-energy infrastructure needed to combat climate change.

This research uses ultra-fast femtosecond lasers to study how photovoltaic materials generate and lose electrons. By tracking where electrons form and where they become trapped, the work aims to improve solar panel efficiency. Better photovoltaic materials could make solar energy cheaper, more reliable, and capable of replacing fossil fuels.