完整後設資料紀錄
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dc.contributor.authorSu, Yu-Weien_US
dc.contributor.authorLin, Yu-Cheen_US
dc.contributor.authorWei, Kung-Hwaen_US
dc.date.accessioned2018-08-21T05:52:59Z-
dc.date.available2018-08-21T05:52:59Z-
dc.date.issued2017-12-14en_US
dc.identifier.issn2050-7488en_US
dc.identifier.urihttp://dx.doi.org/10.1039/c7ta07228gen_US
dc.identifier.urihttp://hdl.handle.net/11536/144135-
dc.description.abstractOver the last ten years, the molecular architectures of p-type donor-acceptor (D-A) conjugated polymers designed for bulk heterojunction (BHJ) photovoltaics, when mixed with fullerenes or n-type polymers, have progressed substantially from one-dimensional (1-D) to branched to two-dimensional (2-D) D-A conjugated structures. In the 1-D structures, alternating D and A units allow internal charge transfer along the conjugated backbone and increase the effective resonance length, as a result of facilitated pi-electron delocalization. Upon progressing from 1-D structures to branched D-A conjugated polymers (comprising repeating donor units in the main chain with electron-withdrawing side chain units) to 2-D conjugated polymers (having D-A repeating units on their backbones as well as perpendicular electron-donating groups on their D units), the solubility, effective conjugation length, and photophysical and BHJ photovoltaic properties have all been altered dramatically. The ideal p-type 2-D conjugated D-A polymer for use in BHJ photovoltaic devices should possess a low band gap (to broaden the absorption range), excellent packing characteristics (particularly along the out-of-plane direction, ensuring good carrier transport), and suitable energy levels for efficient electron transfer (to fullerene moieties or n-type polymers). In this review, we discuss the effects of the structural characteristics and optical properties of these conjugated polymers as well as their packing characteristics on the device performances.en_US
dc.language.isoen_USen_US
dc.titleEvolving molecular architectures of donor-acceptor conjugated polymers for photovoltaic applications: from one-dimensional to branched to two-dimensional structuresen_US
dc.typeArticleen_US
dc.identifier.doi10.1039/c7ta07228gen_US
dc.identifier.journalJOURNAL OF MATERIALS CHEMISTRY Aen_US
dc.citation.volume5en_US
dc.citation.spage24051en_US
dc.citation.epage24075en_US
dc.contributor.department材料科學與工程學系zh_TW
dc.contributor.departmentDepartment of Materials Science and Engineeringen_US
dc.identifier.wosnumberWOS:000416340300002en_US
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