Hydrolyzable Hydrophobic Molecules: Double Barriers for Moisture Degradation: Assembly of Hydrolysable Hydrophobic Molecules for Stable Perovskite Solar Cells with High Open‐Circuit Voltage (Adv. Funct. Mater. 28/2020)

作者：Pengfei Guo; Qian Ye; Chen Liu; Fengren Cao; Xiaokun Yang; Linfeng Ye; Wenhao Zhao; Hongyue Wang; Liang Li; Hongqiang Wang

来源：Advanced Functional Materials, 2020, 30(28): 2070189.

DOI：10.1002/adfm.202070189

• grain boundaries passivation
• hydrolyzable hydrophobic molecules
• moisture stability
• perovskite solar cells
• vacuum assisted assembly

In article number 2002639, Liang Li, Hongqiang Wang, and co‐workers demonstrate a double‐barrier strategy that not only blocks the invasion of moisture but also employs the permeated moisture to increase the moisture durability of perovskite films, which results in an n–i–p perovskite solar cell with moisture stability over 115 days (relative humidity of 70%) and a champion efficiency up to 21.34%.

• 单位
  凝固技术国家重点实验室; 西北工业大学