Baohua Zhao1, Teng Zhang2,*, Wenwen Liu2, Fansong Meng2, Chengben Liu1, Nuo Chen2, Zhi Li3, Zhaobin Liu3, Xiyou Li2,*
Journal of Renewable Materials, Vol.11, No.4, pp. 1533-1554, 2023, DOI:10.32604/jrm.2022.023192
Abstract
Due to the solution processable nature, the prepared perovskite films are polycrystalline with considerable number of defects. These defects, especially defects at interface accelerate the carrier recombination and reduce the carrier collection. Besides, the surface defects also affect the long-term stability of the perovskite solar cells (PVSCs). To solve this problem, surface passivation molecules are introduced at selective interface (the interface between perovskite and carrier selective layer). This review summarizes recent progress of small molecules used in PVSCs. Firstly, different types of defect states in perovskite films are introduced and their effects on device performance are discussed. Subsequently, surface passivation… More >
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