2 results match your criteria: "Department of Physics Imperial College London South Kensington London SW7 2AZ UK.[Affiliation]"
The reported power conversion efficiencies (PCEs) of nonfullerene acceptor (NFA) based organic photovoltaics (OPVs) now exceed 14% and 17% for single-junction and two-terminal tandem cells, respectively. However, increasing the PCE further requires an improved understanding of the factors limiting the device efficiency. Here, the efficiency limits of single-junction and two-terminal tandem NFA-based OPV cells are examined with the aid of a numerical device simulator that takes into account the optical properties of the active material(s), charge recombination effects, and the hole and electron mobilities in the active layer of the device.
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- * A new type of solar cell using these fullerenes alone as light-absorbing materials shows promising results, achieving a power conversion efficiency (PCE) of around 1% initially, which increases to 5.4% when blended with a p-type semiconductor, copper (I) thiocyanate (CuSCN).
- * The study highlights the formation of a unique p-n-like heterointerface between CuSCN and the fullerene derivatives as a critical factor for improving solar cell performance, suggesting possibilities for innovative solar technologies.