Nano-Micro Letters (Nov 2024)
Dual-Donor-Induced Crystallinity Modulation Enables 19.23% Efficiency Organic Solar Cells
Abstract
Article Highlights By modulating the crystalline properties of the active layer with dual donors, the efficiency of organic solar cells reaches 19.23%. The introduction of PTzBI-dF suppresses the accumulation of traps and charge recombination, allowing ternary devices to maintain 82% of their initial power conversion efficiency (PCE) after illumination for 800 h. The dual-donor strategy for modulating the crystallinity of the active layer is applicable to a variety of Y6 derivatives, and the increase in PCE exceeds 1%.
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