Selenium solar tech shows untapped performance potential

A study published in the American Physical Society has examined selenium thin-film solar cells through advanced carrier-resolved photo-Hall and temperature-dependent measurements. According to the research team from the US, Denmark, and Switzerland, the method was used to analyze carrier mobility, concentration, and ionization efficiency under varying light conditions. As per the study, results were compared with other characterization techniques to identify discrepancies and improve measurement accuracy. Device simulations were also performed, and researchers said these aligned well with experimental current-voltage and quantum efficiency data. The study found that selenium exhibits higher carrier mobilities than previously assumed, indicating strong PV potential. These findings are expected to support the development of high-efficiency solar cells based on selenium thin films.