Doping and switchable photovoltaic effect in lead-free perovskites enabled by metal cation transmutation

• Main Authors: Harikesh, Padinhare Cholakkal, Wu, Bo, Ghosh, Biplab, John, Rohit Abraham, Lie, Stener, Thirumal, Krishnamoorthy, Wong, Lydia Helena, Sum, Tze Chien, Mhaisalkar, Subodh, Mathews, Nripan
• Other Authors: School of Materials Science & Engineering
• Format: Article
• Language: English
• Published: 2020
• Subjects: Science::Physics; 2D Layered Perovskite; Antimony
• Online Access: https://hdl.handle.net/10356/138774; https://doi.org/10.21979/N9/9H0XUN
• Institution: Nanyang Technological University

Creating defect tolerant lead-free halide perovskites is the major challenge for development of high-performance photovoltaics with nontoxic absorbers. Few compounds of Sn, Sb, or Bi possess ns2 electronic configuration similar to lead, but their poor photovoltaic performances inspire us to evaluate...