Molecular engineering of pure 2D lead‐iodide perovskite solar absorbers displaying reduced band gaps and dielectric confinement

• Main Authors: Febriansyah, Benny, Lekina, Yulia, Ghosh, Biplab, Harikesh, Padinhare Cholakkal, Koh, Teck Ming, Li, Yongxin, Shen, Zexiang, Mathews, Nripan, England, Jason
• Other Authors: School of Materials Science and Engineering
• Format: Article
• Language: English
• Published: 2020
• Subjects: Science::Chemistry::Inorganic chemistry; Science::Physics; 2D Perovskites; Crystal Engineering
• Online Access: https://hdl.handle.net/10356/142103
• Institution: Nanyang Technological University

Pure 2D lead‐iodide perovskites typically demonstrate poor charge transport and compromised visible light absorption, relative to their 3D congeners. This hinders their potential use as solar absorbers. Herein, the systematic tuning of pyridinium‐based templating cations is reported to introduce int...