The effect of different alkyl chains on the photovoltaic performance of D–π–A porphyrin-sensitized solar cells

Abstract

Compared to the DSSCs based on <bold>WH-C1</bold> and <bold>YD20</bold> with short alkyl chains, the device sensitized by <bold>WH-C2</bold> with the hexyloxy group shows a significantly enhanced <italic>V</italic>_oc, <italic>J</italic>_sc and power conversion efficiency (<italic>η</italic>).