Foreign media: Researchers from Nanjing University of Posts and Telecommunications in China have successfully developed a thin-film solar cell module based on copper zinc tin sulfide selenide (CZTSSe), achieving a photoelectric conversion efficiency of 10.1% certified by the National Renewable Energy Laboratory (NREL). The component area is 10.48 square centimeters. This achievement is based on a single cell with an average efficiency of 13.4%, with efficiency close to the world record of 14.6% set by the Chinese Academy of Sciences in 2024.
The research team adjusted the porosity of the precursor film to avoid the formation of a dense "hard shell" during the selenization process, which would hinder grain growth, thereby improving the uniformity and surface flatness of the film and significantly reducing energy loss from the cell to the component (CTMPCE dropped to 25.3%).
The component has set new records for losses in open-circuit voltage and short-circuit current, and is considered the first high-efficiency solution-processed CZTSSe component, providing a feasible path for the industrialization of large-area inorganic compound thin-film solar cells.
Original article: www.toutiao.com/article/1843675541501128/
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