We report the optimisation of a semi-transparent solar cell based on a blend of a recently reported high performance donor polymer (PFBDB-T) with a non-fullerene acceptor derivative (C8-ITIC).
The performance is shown to strongly depend on the nature of the semi-transparent electrode, and we report the optimal fabrication conditions for a multilayer MoO3/Ag/MoO3 electrode.
The effect of deposition rate and layer thickness of both the Ag and the outer MoO3 on transparency and sheet resistance is investigated, and is shown to have a significant impact on the overall device performance.
The optimised PFBDB-T:C8-ITIC based devices exhibit an average power conversion efficiency (PCE) of 9.2% with an average visible transmittance (AVT) of 22%.
Sun, G., Shahid, M., Fei, Z., Xu, S., Eisner, F.D., Anthopolous, T.D., McLachlan, M.A. and Heeney, M., 2019. Highly-efficient semi-transparent organic solar cells utilising non-fullerene acceptors with optimised multilayer MoO 3/Ag/MoO 3 electrodes. Materials Chemistry Frontiers.
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