Additive Engineering for Efficient and Stable Perovskite Solar Cells

Abstract Perovskite solar cells (PSCs) have reached a certified 25.2% efficiency in 2019 due to their high absorption coefficient, high carrier mobility, long diffusion length, and tunable direct bandgap. However, due to the nature of solution processing and rapid crystal growth of perovskite thin films, a variety of defects can form as a result of the precursor compositions and processing conditions. The use of additives can affect perovskite crystallization and film formation, defect passivation in the bulk and/or at the surface, as well as influence the interface tuning of structure and energetics. Here, recent progress in additive engineering during perovskite film formation is discussed according to the…

• UD
  U.S. Department of Energy

  Awards: AC36-08GO28308, -AC36-08GO28308, 08GO28308
• OO
  Office of Energy Efficiency and Renewable Energy

  Awards: AC36-08GO28308, DE-AC36-08GO28308
• SE
  Solar Energy Technologies Office

  Award: DE-AC36-08GO28308
• OO
  Office of Energy Efficiency