ArticleJournal of materials chemistry. C2025
Interconnected donor-acceptor-additive effects on the microstructure and device performance of PM6 : Y6 solar cells.
Article in Journal of materials chemistry. C, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- A Flexible Side-Chain Dispersant Enables Uniform Self-Assembled Monolayers for 18.67% Organic Solar Cells.Molecules (Basel, Switzerland) · 2026Article
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9 authors.
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Abstract
The microstructure of the donor and acceptor materials within a bulk heterojunction is critical to the performance of organic solar cells, significantly influencing charge generation, transport, and overall efficiency and stability. Here, we studied the role of the donor : acceptor ratio and the use of additives on the resulting microstructure in films and devices based on PM6 : Y6. A detailed study of the resulting structures, mainly by X-ray scattering, indicates that the molecular arrangement leading to higher efficiencies is correlated with the presence of a single, well-mixed phase. In this phase, the diffusion of the Y6 molecules is constrained within the PM6 matrix. Interestingly, this microstructure can be achieved either by tuning the composition or by incorporating a solvent additive. Consequently, either approach can be employed to enhance photovoltaic performance.
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