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- W2332328717 abstract "Two bithiophene-bridged D–A copolymers, PDTSBTBTz and PBDTBTBTz, based on bithiazole acceptor unit and dithienosiole (DTS) or benzodithiophene (BDT) donor unit, were synthesized by the Pd-catalyzed Stille-coupling reaction. The two copolymers exhibit good thermal stability, strong absorption in the visible region, and relatively lower HOMO energy level at ca. −5.10 eV. The hole mobilities of PDTSBTBTz and PBDTBTBTz measured by SCLC method are 1.85 × 10–3 and 1.77 × 10–3 cm2/(V s), respectively. Power conversion efficiency (PCE) of the polymer solar cell (PSC) based on PDTSBTBTz: PC70BM (1:1, w/w) was 3.82% with Jsc = 8.68 mA/cm2, Voc = 0.72 V, and FF = 0.611, under the illumination of AM1.5, 100 mW/cm2. In contrast, the PCE of the PSC based on PBDTBTBTz:PC70BM (1:1, w/w) reached 4.46% with Jsc = 9.01 mA/cm2, Voc = 0.82 V, and FF = 0.603. These results indicate that bithiophene-bridged D–A copolymers are promising photovoltaic donor materials for the application in PSCs." @default.
- W2332328717 created "2016-06-24" @default.
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- W2332328717 date "2011-10-27" @default.
- W2332328717 modified "2023-10-14" @default.
- W2332328717 title "Photovoltaic Performance Improvement of D–A Copolymers Containing Bithiazole Acceptor Unit by Using Bithiophene Bridges" @default.
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- W2332328717 doi "https://doi.org/10.1021/ma201976t" @default.
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