Abstract

Recently, a new kind of thin film solar cells, perovskite-based solar cells (PSCs), has received worldwide attention due to their dramatic increase in the power conversion efficiency (PCE) from 3.8% to 20.1% in short five years.[1] Several kinds of perovskite solar cells have been developing recently, such as planar heterojunction and mesoporous structures.[2-3] No matter what kind of PSCs, energy and interfacial engineering are essential to the improvement of the cell performances. Aiming at this issue, some representative works have been carried out in our labs, over 17% PCE has been achieved.[3-9]

© 2015 Optical Society of America