Advances in SnO 2 for Efficient and Stable n–i–p Perovskite Solar Cells

Abstract Perovskite solar cells (PSCs) based on the regular n–i–p device architecture have reached above 25% certified efficiency with continuously reported improvements in recent years. A key common factor for these recent breakthroughs is the development of SnO 2 as an effective electron transport layer in these devices. In this article, the key advances in SnO 2 development are reviewed, including various deposition approaches and surface treatment strategies, to enhance the bulk and interface properties of SnO 2 for highly efficient and stable n–i–p PSCs. In addition, the general materials chemistry associated with SnO 2 along with the corresponding materials challenges and improvement strategies are…

• UD
  U.S. Department of Energy

  Award: DE‐AC36‐08GO28308
• OO
  Office of Energy Efficiency and Renewable Energy
• SE
  Solar Energy Technologies Office
• NR
  National Renewable Energy Laboratory

  Awards: DE‐FOA‐0002064, DE‐EE0008790