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1-Adamantanamine Hydrochloride Resists Environmental Corrosion to Obtain Highly Efficient and Stable Perovskite Solar Cells.

Baibai LiuDongmei HeQian ZhouYu ChenPeng HeXiao HanDanqing MaYong HeYuelong LiPengjun ZhaoZong-Xiang XuShirong LuZhigang ZangJiangzhao Chen
Published in: The journal of physical chemistry letters (2023)
Passivating the defective surface of perovskite film is a promising strategy to improve the stability and efficiency of perovskite solar cells (PSCs). Herein, 1-adamantanamine hydrochloride (ATH) is introduced to the upper surface of the perovskite film to heal the defects of the perovskite surface. The best-performance ATH-modified device has a higher efficiency (23.45%) than the champion control device (21.53%). The defects are passivated, interfacial nonradiative recombination is suppressed, and interface stress is released by the ATH deposited on the perovskite film, leading to longer carrier lifetimes and enhancement in open-circuit voltage ( V OC ) and fill factor (FF) of the PSCs. With obvious improvement, V OC and FF of 1.159 V and 0.796 for the control device are raised to 1.178 V and 0.826 for the ATH-modified device, respectively. Finally, during an operational stability measurement of more than 1000 h, the ATH-treated PSC exhibited better moisture resistance, thermal persistence, and light stability.
Keyphrases
  • perovskite solar cells
  • room temperature
  • highly efficient
  • high efficiency
  • ionic liquid
  • solar cells
  • reduced graphene oxide
  • dna damage
  • stress induced
  • molecular dynamics simulations
  • climate change