Synthesis and Characterisation of Non-Fullerene Electron Acceptors for Organic Photovoltaics by Sarah Holliday

Author:Sarah Holliday
Language: eng
Format: epub, pdf
Publisher: Springer International Publishing, Cham

Considering the faster recombination losses of P3HT:FBR observed by transient absorption studies, it is possible to understand the difference in optimal active layer thickness of these blends compared to the reference fullerene devices, given the losses occurring during charge transport through the active layer. Increased recombination for these blends may also be a reason why the V oc of P3HT:FBR devices is not as large as expected, considering the difference in electron affinity compared to PC60BM, as it has previously been shown that faster recombination losses lead to reduced V oc [25].

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