Origin of Photocarrier Losses in Iron Pyrite (FeS2) Nanocubes

• Main Authors: Shukla, Sudhanshu, Xing, Guichuan, Ge, Hu, Prabhakar, Rajiv Ramanujam, Mathew, Sinu, Su, Zhenghua, Nalla, Venkatram, Venkatesan, Thirumalai, Mathews, Nripan, Sritharan, Thirumany, Sum, Tze Chien, Xiong, Qihua
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2017
• Subjects: Variable range hopping; Transient absorption
• Online Access: https://hdl.handle.net/10356/86284; http://hdl.handle.net/10220/43983
• Institution: Nanyang Technological University

Iron pyrite has received significant attention due to its high optical absorption. However, the loss of open circuit voltage (Voc) prevents its further application in photovoltaics. Herein, we have studied the photophysics of pyrite by ultrafast laser spectroscopy to understand fundamental limitatio...