Low Temperature Fabrication for High Performance Flexible CsPbI₂Br Perovskite Solar Cells.

ABSTRACT: All-inorganic CsPbX₃-based perovskites, such as CsPbI₂Br, show much better thermal and illumination stability than their organic-inorganic hybrid counterparts. However, fabrication of high-quality CsPbI₂Br perovskite film normally requires annealing at a high temperature (>250 °C) that is not compatible with the plastic substrate. In this work, a Lewis base adduct-promoted growth process that makes it possible to fabricate high quality CsPbI₂Br perovskite films at low temperature is promoted. The mechanism is attributed to synthesized dimethyl sulfoxide (DMSO) adducts which allow a low activation energy route to form CsPbI₂Br perovskite films during the thermal annealing treatment. A power conversion efficiency (PCE) of 13.54% is achie

SUBMITTER: Jiang H 

PROVIDER: S-EPMC6247060 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature