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- W2140223750 abstract "A novel donor–acceptor (D–A) copolymer comprising of weak electron donating BDT moiety and strong 9-(2-octyldodecyl)−8H-pyrrolo[3,4-b] bisthieno[2,3-f:3',2'-h] quinoxaline-8,10(9H)-dione (PTQD) unit denoted as P(PTQD-BDT) was synthesized as donor material for polymer solar cells. P(PTQD-BDT) shows a broad visible-near-infrared absorption band with an optical bandgap of 1.74 eV and possesses a relatively low-lying HOMO level at −5.28 eV. Bulk-heterojunction polymer solar cell with the optimized blend of 1:2 (weight ratio) P(PTQD-BDT):PC71BM (processed with chloroform) shows an open circuit voltage of 0.92 V, a short circuit current density of 7.84 mA/cm2, and a fill factor of 0.50, achieving a power conversion efficiency (PCE) of 3.61%. The PCE has been further improved to 5.55% (Jsc = 10.34 mA/cm2, Voc = 0.88V and FF = 0.61), when 3% vol 1,8-diio-dooctane (DIO) was used as solvent additive for the processing of P(PTQD-BDT):PC71BM blended film. The enhancement in Jsc is as a result of the appropriate morphology and efficient exciton dissociation into free charge carrier. The increase in PCE has been attributed to the favorable nanoscale morphology for efficient exciton dissociation and charge transport (reduction in the electron to hole mobility ratio). © 2015 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2015, 53, 2390–2398" @default.
- W2140223750 created "2016-06-24" @default.
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- W2140223750 date "2015-05-29" @default.
- W2140223750 modified "2023-10-06" @default.
- W2140223750 title "A New D-A conjugated polymer P(PTQD-BDT) with PTQD acceptor and BDT donor units for BHJ polymer solar cells application" @default.
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- W2140223750 doi "https://doi.org/10.1002/pola.27699" @default.
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