Defects at discontinuities of the perovskite lattice limit the performance of the perovskite solar cell (PSC). Lead iodide (PbI) and pyridine have been shown to passivate these defects. We treat methylammonium lead iodide (MAPbI) films with pyridine solutions to investigate the effects of the two passivators.
View Article and Find Full Text PDFNanostructured tin (IV) oxide (SnO ) is emerging as an ideal inorganic electron transport layer in n-i-p perovskite devices, due to superior electronic and low-temperature processing properties. However, significant differences in current-voltage performance and hysteresis phenomena arise as a result of the chosen fabrication technique. This indicates enormous scope to optimize the electron transport layer (ETL), however, to date the understanding of the origin of these phenomena is lacking.
View Article and Find Full Text PDF