A new synthetic route to prepare an alkylated indacenodithieno[3,2-b]thiophene-based nonfullerene acceptor (C8-ITIC) is reported. This new acceptor, C8-ITIC, exhibits a reduction in the optical band gap, higher absorptivity, and an increased propensity to crystallize.
Available from Advanced Materials (open access)
Here we quantitatively study the role of the common fullerene derivative, PCBM, in limiting the stability of benchmark organic solar cells, showing that a minor fraction (<1%) of photo-oxidised PCBM, induced by short exposure to either solar or ambient laboratory lighting conditions in air, is sufficient to compromise device performance severely.
Available from Energy & Environmental Science
Here we demonstrate 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, P3HT, and a high-efficiency, low-band gap polymer in a single-layer bulk-heterojunction device.
Available from Nature Materials
A novel small molecule, FBR, bearing 3-ethylrhodanine flanking groups was synthesized as a nonfullerene electron acceptor for solution-processed bulk heterojunction organic photovoltaics.
Available from the Journal of the American Chemical Society