New Strategy Unlocks 29.76% Efficiency For All-Perovskite Tandem Solar Cells
Shannon Davis
Tandem solar cells (TSCs) comprise two stacked layers, with each subcell absorbing different wavelengths of sunlight, which makes TSCs more efficient than single-layer solar cells.
All-perovskite TSCs hold great promise for next-generation photovoltaics, with a theoretical efficiency exceeding 40%. However, their practical performance is hampered by mismatched crystallization kinetics between their wide-bandgap (WBG) and narrow-bandgap (NBG) subcells, leading to phase segregation and defect...