Rutile TiO2 nanowire-based perovskite solar cells†
Abstract
Different lengths of rutile TiO2 nanowires (NW) with wide-open space for effective material filling were used as photoanodes for perovskite solar cells. Cells with 900 nm nanowires as photoanodes exhibit a current density of 22 mA cm−2 and an efficiency of 11.7%, outperforming the reported TiO2 nanowire-based perovskite solar cells.