Low threshold and efficient multiple exciton generation in halide perovskite nanocrystals

• Main Authors: Li, Mingjie, Begum, Raihana, Fu, Jianhui, Xu, Qiang, Koh, Teck Ming, Veldhuis, Sjoerd A., Grätzel, Michael, Mathews, Nripan, Mhaisalkar, Subodh, Sum, Tze Chien
• Other Authors: School of Materials Science & Engineering
• Format: Article
• Language: English
• Published: 2019
• Subjects: DRNTU::Engineering::Materials; Perovskite Nanocrystals; Multiple Exciton Generation
• Online Access: https://hdl.handle.net/10356/82965; http://hdl.handle.net/10220/47527; https://doi.org/10.21979/N9/HJGXR3
• Institution: Nanyang Technological University

Multiple exciton generation (MEG) or carrier multiplication, a process that spawns two or more electron–hole pairs from an absorbed high-energy photon (larger than two times bandgap energy Eg), is a promising way to augment the photocurrent and overcome the Shockley–Queisser limit. Conventional semi...