Thickness of the hole transport layer in perovskite solar cells: performance versus reproducibility†
Abstract
We studied the effect of the hole transport layer (HTL) thickness on photovoltaic properties of meso-superstructured perovskite solar cells based on CH3NH3PbI3−xClx. We found that there is an interplay between photovoltaic performance and reproducibility: thinning the HTL increased performances of the devices but reduced their reproducibility.