Stable Inverted Antimony-Bismuth Alloyed Inorganic Perovskite Solar Cells via Crystallization Control and Defect Passivation.
Triple-junction tandem solar cells require top-cell absorbers with suitable wide-bandgap (2.0-2.3 eV), low toxicity, and high stability. Bismuth-based perovskites with the A3B2X9 structure have emerged as promising candidates due to their nontoxic nature and favorable optoelectronic properties. However, their efficienc...