In situ active guanidinium salts interaction promotes facet orientation and crystallization for efficient and stable inverted perovskite solar cells
Peer-Reviewed Publication
Updates every hour. Last Updated: 25-Oct-2025 17:11 ET (25-Oct-2025 21:11 GMT/UTC)
A research team from Tianjin University of Technology, Shandong Univeristy and Shantou University has developed a novel method to enhance the performance and durability of inverted perovskite solar cell (PSC). By introducing guanidinium salt into the fabrication process, the team successfully controlled crystal growth and orientation, leading to solar cells with higher efficiency (25.85%), improved charge transport and exceptional stability under humid and thermal conditions. Moreover, extensive testing demonstrated that the devices retain over 95% of their original efficiency after thousands of hours of operation and exposure to challenging environments.
This work offers a reliable approach to fabricating highly oriented, low-defect perovskite films, accelerating the development and commercialization of efficient and stable PSCs.
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