Applications of multifunctional metal–organic frameworks in perovskite photovoltaics: roles, advantages and prospects

Abstract

Metal–organic frameworks (MOFs) are considered to be highly fascinating materials due to their excellent photoelectric properties, tunable porous nanostructures and desirable chemical absorption characteristics, which play beneficial roles in constructing high-performance and eco-friendly perovskite solar cells (PSCs). Herein, the recent advancements in applying MOFs in perovskite photovoltaics have been reviewed, with a particular focus on emphasizing the multiple roles (i.e., serving as the carrier transport layer, interfacial modifier, crystallization regulator, defect passivator and Pb leakage inhibitor) and multifarious advantages of MOFs that enable efficient, durable and eco-friendly PSCs to be achieved. The limitations and challenges associated with currently employed MOFs materials in PSCs are discussed. An insightful perspective regarding the optimal molecular configuration design of advanced MOFs for fabricating highly efficient, sustainable, flexible and wearable MOFs-based perovskite optoelectronic devices is provided.