Crystal Control and Stability for High-Performance Perovskite Solar Cell

Woon Fong Leung (Inventor), Jingchuan Wang (Inventor), Lijun Yang (Inventor)

Research output: Patents, agreements, assignments and companiesPatents granted


PbI2 thin film crystallization control is prerequisite of high-quality perovskite layer for the sequentially solution-processed perovskite solar cells. According to the present invention, an efficient-and-simple method has been developed by adding halogen acid additive to improve perovskite thin-film quality and an efficiency of at least 15.2% is obtained. This approach improves coverage, uniformity and stability of pervoskite thin-film. In addition, a nanofiber scaffold is incorporated into the perovskite layer so as to reduce the amount of grain boundaries, thus substantially reducing electron recombination within these boundaries.
Original languageEnglish
Patent number11,217,751
Filing date12/04/15
Publication statusPublished - 4 Jan 2022


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