Electrical Engineering

Perovskites are the basis of many multi-functional optically-sensitive devices such as solar cells and photodetectors. They can be processed using solution-based techniques and are suitable for applications on flexible substrates. While the rapid improvement in performance of these devices have been reported extensively, the reasons accounting for different losses (hence, performance limits) have not been studied as thoroughly. Most reports that provide maximum theoretical efficiency do not account for electron and hole transport layers (ETL and HTL).