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- W2066129820 abstract "Previously we have reported a series of perylene dimide (PDI) dimers as efficient solution-processible small molecule acceptors. In this paper we present a new solution-processible PDI trimer with triphenylamine as the romatic bridge. This trimer was synthesized by Suzuki coupling reaction and fully characterized with <sup>1</sup>H-NMR, <sup>13</sup>C-NMR, TOF-MS, and elementary analysis. It exhibits a broad absorption band in the wavelength range from 450 to 650 nm with a peak round 533 nm and a maximum extinction coefficient of 9.61 × 10<sup>4</sup> M<sup>-1</sup> cm<sup>-1</sup>. Its lowest unoccupied and highest occupied molecular orbit (LUMO and HOMO) energies are −3.75 and −5.60 eV. When blend with the commercial P3HT, it gives an open-circuit voltage (V<sub>oc</sub>) of 0.73 V, a short-circuit current-density (J<sub>sc</sub>) of 0.60 mA/cm<sup>2</sup>, a fill-factor (FF) of 51.0% and an efficiency of 0.22%. When utilizing the conjugated polymer of PBDTTT-C-T as the donor and 5% DIO as the additive, the best conventional cell yields 1.82% efficiency with a V<sub>oc</sub> of 0.99 V, a J<sub>sc</sub> of 3.44 mA/cm<sup>2</sup>, and an FF of 53.0%." @default.
- W2066129820 created "2016-06-24" @default.
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- W2066129820 date "2014-10-06" @default.
- W2066129820 modified "2023-09-27" @default.
- W2066129820 title "Solution-processable perylene diimide based star-shaped small molecule acceptor: synthesis and photovoltaic properties" @default.
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- W2066129820 doi "https://doi.org/10.1117/12.2058421" @default.
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