Ideal Bandgap Organic–Inorganic Hybrid Perovskite Solar Cells

• Published in: Advanced materials (Weinheim) Vol. 29; no. 47
• Main Authors: Yang, Zhibin, Rajagopal, Adharsh, Jen, Alex K.‐Y.
• Format: Journal Article
• Language: English
• Published: Germany Wiley Subscription Services, Inc 01.12.2017; Wiley Blackwell (John Wiley & Sons)
• Subjects: Absorbers; Absorptivity; compositional engineering; Energy conversion efficiency; Materials science; open‐circuit voltage; optical simulations; Optoelectronics; Pb–Sn binary alloys; Photoluminescence; Photons; Photovoltaic cells; R&D; Research & development; Shockley–Queisser limit; Solar cells; Thermalization (energy absorption); Pb-Sn binary alloys; Shockley-Queisser limit; compositional engineering; open-circuit voltage; optical simulations

Extremely high power conversion efficiencies (PCEs) of ≈20–22% are realized through intensive research and development of 1.5–1.6 eV bandgap perovskite absorbers. However, development of ideal bandgap (1.3–1.4 eV) absorbers is pivotal to further improve PCE of single junction perovskite solar cells...