Jason A. Röhr

TL;DR: This work demonstrates highly efficient and stable solar cells using a ternary approach, wherein two non-fullerene acceptors are combined with both a scalable and affordable donor polymer, poly(3-hexylthiophene) (P3HT), and a high-efficiency, low-bandgap polymer in a single-layer bulk-heterojunction device.

TL;DR: Improvements in efficiency are found upon backbone fluorination of the donor polymer to afford the novel material PFBDB-T and the resulting blend with C8-ITIC shows an impressive PCE up to 13.2% as a result of the higher open-circuit voltage.

TL;DR: It was determined that the P3 HT:FBR blend is highly intermixed, leading to increased charge generation relative to comparative devices with P3HT:PC60BM, but also faster recombination due to a nonideal morphology, demonstrating that this acceptor shows great promise for further optimization.

TL;DR: In this article, the potential for spectral selectivity through the choice of OPV materials is evaluated for the case of a photovoltaic greenhouse, where the action spectrum of typical greenhouse crops is used to determine the impact on crop growth of blocking different spectral ranges from the crops.

TL;DR: In this article, the role of photo-oxidation of PCBM derivatives in limiting the stability of organic solar cells was quantitatively studied, showing that a minor fraction of photooxidised PCBM, induced by short exposure to either solar or ambient laboratory lighting conditions in air, consistent with typical processing and operating conditions, is sufficient to compromise device performance severely.