Archivio Istituzionale della RicercaWide-bandgap perovskite solar cells suffer from large open circuit voltage losses. We use TCAD simulations of bromide-based single-halide p-i-n devices to isolate the coupled role of trap distribution and band alignment at the charge transport interfaces. We show that specific interfacial electrostatic conditions enhance trap-assisted recombination, causing a marked reduction in open circuit voltage.
Trap and Band Alignment Induced Voc Losses in Wide-Bandgap Perovskite Solar Cells / Fronteddu, A., Cappelluti, F.. - ELETTRONICO. - (2026), pp. 130-131. (2026 International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD) Cork (Ire) 19-24 July 2026) [10.1109/nusod69851.2026.11687834].
Trap and Band Alignment Induced Voc Losses in Wide-Bandgap Perovskite Solar Cells
Fronteddu, Antonio;Cappelluti, Federica
2026
Abstract
Wide-bandgap perovskite solar cells suffer from large open circuit voltage losses. We use TCAD simulations of bromide-based single-halide p-i-n devices to isolate the coupled role of trap distribution and band alignment at the charge transport interfaces. We show that specific interfacial electrostatic conditions enhance trap-assisted recombination, causing a marked reduction in open circuit voltage.
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https://hdl.handle.net/11583/3015678