Elucidating the Role of a Tetrafluoroborate‐Based Ionic Liquid at the n‐Type Oxide/Perovskite Interface

• Published in: Advanced energy materials Vol. 10; no. 4
• Main Authors: Noel, Nakita K., Habisreutinger, Severin N., Wenger, Bernard, Lin, Yen‐Hung, Zhang, Fengyu, Patel, Jay B., Kahn, Antoine, Johnston, Michael B., Snaith, Henry J.
• Format: Journal Article
• Language: English
• Published: Weinheim Wiley Subscription Services, Inc 01.01.2020; Wiley
• Subjects: Conduction bands; Crystallization; Energy conversion efficiency; fermi level; Interfaces; Ionic liquids; Ions; Optoelectronics; perovskite solar cell; Perovskites; Photoelectrons; Photoluminescence; Photovoltaic cells; reduced defect density; Solar cells; Spectrum analysis; Substrates; time‐resolved microwave conductivity; Tin dioxide; Work functions

Halide perovskites are currently one of the most heavily researched emerging photovoltaic materials. Despite achieving remarkable power conversion efficiencies, perovskite solar cells have not yet achieved their full potential, with the interfaces between the perovskite and the charge‐selective laye...