Innovative Approach Enhances Efficiency of Perovskite Solar Cells

2025-05-05 green

Netherlands, Monday, 5 May 2025.
Researchers have introduced a strategy using organic salts to form Lewis bases on-demand, boosting perovskite solar cells’ efficiency to 26.1%, with 96% efficiency retained after 1,000 hours.

Breakthrough in Perovskite Technology

The innovative strategy, published in Nature Nanotechnology on May 3, 2025, centers on utilizing organic salts containing Lewis acids that can be deprotonated to produce Lewis bases at specific times during the fabrication process [1]. This approach has enabled researchers to achieve optimal crystallization of α-phase FAPbI3 perovskite films, resulting in enhanced film quality and larger grain sizes [1]. The development represents a significant advancement in perovskite solar cell technology, which has been gaining attention as a promising alternative to conventional silicon-based photovoltaics [2].

Performance Metrics and Stability

The new cells incorporating semicarbazide hydrochloride have achieved a remarkable efficiency of 26.1%, with a National Renewable Energy Laboratory-certified quasi-steady-state efficiency of 25.33% [1]. This performance level positions the technology among the highest-achieving perovskite solar cells to date, particularly noteworthy given that typical perovskite cells currently achieve efficiency ranges of 24-27% [3]. The research team has also demonstrated impressive stability, with the cells maintaining 96% of their initial efficiency after 1,000 hours of operation at 85°C under maximum power point tracking [1].

Commercial Implications and Future Prospects

The development comes at a crucial time for the solar energy sector, as the industry seeks more efficient and cost-effective alternatives to traditional silicon panels [4]. While perovskite technology shows immense promise, experts caution that commercial availability may still be several years away [5]. The upcoming Perovskite Connect 2025 conference, scheduled for October 22-23, 2025, in Berlin, will bring together major industry players such as Microquanta, Swift Solar, and Oxford PV to discuss these advances and chart the path toward commercialization [4].

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Solar Cells Perovskite