Water-Soluble 2D Transition Metal Dichalcogenides as the Hole-Transport Layer for Highly Efficient and Stable p–i–n Perovskite Solar Cells

• Published in: ACS applied materials & interfaces Vol. 9; no. 30; pp. 25323 - 25331
• Main Authors: Huang, Peng, Wang, Zhaowei, Liu, Yanfeng, Zhang, Kaicheng, Yuan, Ligang, Zhou, Yi, Song, Bo, Li, Yongfang
• Format: Journal Article
• Language: English
• Published: United States American Chemical Society 02.08.2017
• Subjects: acidity; molybdenum disulfide; solar cells; water solubility; p−i−n perovskite solar cells; improved stability; 1T phase; hole-transport layer; 2D transition metal dichalcogenides

As a hole-transport layer (HTL) material, poly­(3,4-ethylenedioxythiophene):polystyrene-sulfonate (PEDOT:PSS) was often criticized for its intrinsic acidity and hygroscopic effect that would in the long run affect the stability of perovskite solar cells (Pero-SCs). As alternatives, herein water-solu...