The development of a robust quasi-ohmic contact with minimal resistance, good stability and cost-effectiveness is crucial for perovskite solar cells. We introduce a generic approach featuring a Lewis-acid layer sandwiched between dopant-free semicrystalline polymer and metal electrode in perovskite solar cells, resulting in an ideal quasi-ohmic contact even at elevated temperature up to 85 °C. The solubility of Lewis acid in alcohol facilitates nondestructive solution processing on top of polymer, which boosts hole injection from polymer into metal by two orders of magnitude. By integrating the polymer-acid-metal structure into solar cells, devices exhibit remarkable resilience, retaining 96% ± 3%, 96% ± 2% and 75% ± 7% of their initial efficiencies after continuous operation in nitrogen at 35 °C for 2212 h, 55 °C for 1650 h and 85 °C for 937 h, respectively. Leveraging the Arrhenius relation, we project an impressive T lifetime of 26,126 h at 30 °C.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10914746PMC
http://dx.doi.org/10.1038/s41467-024-46145-7DOI Listing

Publication Analysis

Top Keywords

solar cells
16
quasi-ohmic contact
12
perovskite solar
12
polymer metal
8
polymer-acid-metal quasi-ohmic
4
contact stable
4
stable perovskite
4
solar
4
cells
4
cells 20000-hour
4

Similar Publications

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!