Oak Ridge National Laboratory scientists combined imaging techniques to measure crystallization kinetics of perovskite films following exposure to a mixed halide vapor. Over time, extra halide reactants settle in the film's grain boundaries, demonstrating atomic competition in crystal growth.
CIGSe modules in standard industrial formats have not yet attained the record efficiency demonstrated at laboratory scale. One possible cause: defects that reduce the efficiency level can form during the course of fabrication.
The Goal: Make solar cells cheaper by eliminating silver and lead from manufacturingVanessa L. Pool, a postdoctoral researcher at SLACâ€™s Stanford Synchrotron Radiation Lightsource, with an instrument used to observe how a solar cellâ€™s silver contacts form during high-temperature manufacturing. (SLAC National Accelerator Laboratory)