2D black phosphorous nanosheets as a hole transporting material in perovskite solar cells

• Main Authors: Muduli, Subas Kumar, Varrla, Eswaraiah, Kulkarni, Sneha Avinash, Han, Guifang, Thirumal, Krishnamoorthy, Lev, Ovadia, Mhaisalkar, Subodh, Mathews, Nripan
• Other Authors: School of Materials Science and Engineering
• Format: Article
• Language: English
• Published: 2020
• Subjects: Engineering::Materials; Black phosphorus (BP); HTM
• Online Access: https://hdl.handle.net/10356/140946
• Institution: Nanyang Technological University

We demonstrate for the first-time liquid exfoliated few layers of 2D Black phosphorus (BP) nanosheets as a hole transporting material (HTM) for perovskite based solar cells. The photoelectron spectroscopy in air (PESA) measurements confirm the low laying valence band level of BP nanosheets (−5.2 eV)...