Regulating three-layer full carbon electrodes to enhance the cell performance of CsPbI3 perovskite solar cells

Carbon-based perovskite solar cells exhibit a promising application prospect due to its cost effective and attractive hydrophobic nature and chemical inertness, but are still limited to unsatisfied device efficiency. Herein, we design a triple-layer full-carbon electrode for n-i-p typed perovskite solar cells, which is comprised of a modified macroporous carbon layer, a highly conductive graphite layer and a thin dense carbon layer, and each layer undertakes different contribution to improving the cell performance. Based on this full-carbon electrode, inorganic CsPbI3 perovskite solar cells exhibit >19% certified efficiency which is the highest result among carbon-based CsPbI3 devices. On one hand, carbon…

• NN
  National Natural Science Foundation of China

  Awards: 52172260, 52227803, 52361145847, 52203368, 52222212
• MO
  Ministry of Science and Technology of the People's Republic of China

  Award: 2021YFB3800103
• DO
  Department of Science and Technology for Social Development

  Award: 2021YFB3800103