Spacer Engineering of Diammonium‐Based 2D Perovskites toward Efficient and Stable 2D/3D Heterostructure Perovskite Solar Cells (Adv. Energy Mater. 2/2022)

Abstract

2D/3D Perovskites In article number 2102973, Qifan Xue, Hong Li, Jean-Luc Brédas, Hin-Lap Yip and co-workers report a spacer tailoring strategy to regulate the interfacial properties of diammonium-based 2D/3D perovskite heterostructures, which allows the well-controlled phase composition and crystalline orientation and enhanced surface passivation of a 2D capping layer. This work provides an important insight into the further development of high-performance perovskite solar cells through interfacial reconstruction.