Ontology highlight
ABSTRACT:
SUBMITTER: Tan H
PROVIDER: S-EPMC6079062 | biostudies-literature | 2018 Aug
REPOSITORIES: biostudies-literature
Nature communications 20180806 1
Efficient wide-bandgap perovskite solar cells (PSCs) enable high-efficiency tandem photovoltaics when combined with crystalline silicon and other low-bandgap absorbers. However, wide-bandgap PSCs today exhibit performance far inferior to that of sub-1.6-eV bandgap PSCs due to their tendency to form a high density of deep traps. Here, we show that healing the deep traps in wide-bandgap perovskites-in effect, increasing the defect tolerance via cation engineering-enables further performance improv ...[more]