The addition of a guest component can improve the open-circuit voltage in ternary organic solar cells. Spectroscopic experiments, combined with quantum chemistry simulations, conducted on a series of ternary organic solar cells provide a guide to further improving the open-circuit voltage, and hence the power conversion efficiency, of these solar cells.
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References
Street, R. A., Davies, D., Khlyabich, P. P., Burkhart, B. & Thompson, B. C. Origin of the tunable open-circuit voltage in ternary blend bulk heterojunction organic solar cells. J. Am. Chem. Soc. 135, 986–989 (2013). This paper proposes the ‘alloy model’ to explain the enhanced VOC in TOSCs.
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This is a summary of: Wang, Y. et al. Origins of the open-circuit voltage in ternary organic solar cells and design rules for minimized voltage losses. Nat. Energy https://doi.org/10.1038/s41560-023-01309-5 (2023).
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Mechanisms for improved open-circuit voltage in ternary organic solar cells. Nat Energy 8, 919–920 (2023). https://doi.org/10.1038/s41560-023-01313-9
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DOI: https://doi.org/10.1038/s41560-023-01313-9
