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http://hdl.handle.net/10397/96407
Title: | Crystal control and stability for high-performance perovskite solar cell | Authors: | Leung, WFW Wang, J Yang, L |
Issue Date: | 4-Jan-2022 | Source: | US Patent 11,217,751 B2. Washington, DC: US Patent and Trademark Office, 2022 | Abstract: | PbI.sub.2 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. | Rights: | Assignee: The Hong Kong Polytechnic University |
Appears in Collections: | Patent |
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us11217751b2.pdf | 3.73 MB | Adobe PDF | View/Open |
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