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|Title:||Synthesis of a novel low-bandgap polymer based on a ladder-type heptacyclic arene consisting of outer thieno[3,2-b]thiophene units for efficient photovoltaic application||Authors:||Xu, Xiaofeng
Choon, Ng Siu
Ong, Beng S.
|Keywords:||DRNTU::Engineering::Chemical engineering||Issue Date:||2013||Source:||Xu, X., Cai, P., Lu, Y., Choon, N. S., Chen, J., Ong, B. S., et al. (2013). Synthesis of a novel low-bandgap polymer based on a ladder-type heptacyclic arene consisting of outer thieno[3,2-b]thiophene units for efficient photovoltaic application. Macromolecular Rapid Communications, 34(8), 681-688.||Series/Report no.:||Macromolecular rapid communications||Abstract:||A novel conjugated polymer PIDTT-quinoxaline (Qx) based on the coplanar thieno[3,2-b]thiophene-phenylene-thieno[3,2-b]thiophene structure is synthesized and evaluated as an electron-donor material for bulk-heterojunction polymer solar cells (BHJ PSCs). The absorption spectra, electrochemical, charge transport, and film morphology properties as well as theoretical modeling of PIDTT-Qx are investigated to understand its intrinsic structure–property relationship. As expected, this polymer with an extended π-conjugated backbone exhibits a narrow-bandgap and board absorption spectrum for enhanced light harvesting. BHJ PSCs (ITO/PEDOT:PSS/polymer:PC71BM/interlayer/Al) afford a maximum power conversion efficiency of 5.05% with an open-circuit voltage of 0.84 V, a short-circuit current density of 11.26 mA cm−2, and a fill factor of 53.4%. These results demonstrate the potential of PIDTT-Qx as an efficient electron-donor material for BHJ PSCs.||URI:||https://hdl.handle.net/10356/102771
|ISSN:||1022-1336||DOI:||10.1002/marc.201300028||Rights:||© 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.||Fulltext Permission:||none||Fulltext Availability:||No Fulltext|
|Appears in Collections:||MSE Journal Articles|
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