Relaxed Current Matching Requirements in Highly Luminescent Perovskite Tandem Solar Cells and Their Fundamental Efficiency Limits
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DOI: 10.1021/acsenergylett.0c02481
Abstract: Perovskite-based tandem solar cells are of increasing interest as they approach commercialization. Here we use experimental parameters from optical spectroscopy measurements to calculate the limiting efficiency of perovskite–silicon and all-perovskite two-terminal tandems, employing currently available… read more here.
Keywords: bandgap; bandgap subcell; high bandgap; luminescence coupling ... See more keywords
Enhancing Defect Tolerance and Phase Stability of High-Bandgap Perovskites via Guanidinium Alloying
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DOI: 10.1021/acsenergylett.8b00576
Abstract: The open-circuit voltages (VOC) of hybrid perovskite (HP) solar cells do not increase sufficiently with increasing bandgap (for Eg > 1.70eV). We study the impact of A+ size mismatch induced lattice distortions (in ABX3 structure)… read more here.
Keywords: bandgap; defect tolerance; enhancing defect; high bandgap ... See more keywords