完整後設資料紀錄
DC 欄位 | 值 | 語言 |
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dc.contributor.author | Wu, Jhong-Sian | en_US |
dc.contributor.author | Jheng, Jyun-Fong | en_US |
dc.contributor.author | Chang, Jen-Yun | en_US |
dc.contributor.author | Lai, Yu-Ying | en_US |
dc.contributor.author | Wu, Kuan-Yi | en_US |
dc.contributor.author | Wang, Chien-Lung | en_US |
dc.contributor.author | Hsu, Chain-Shu | en_US |
dc.date.accessioned | 2014-12-08T15:36:55Z | - |
dc.date.available | 2014-12-08T15:36:55Z | - |
dc.date.issued | 2014-11-21 | en_US |
dc.identifier.issn | 1759-9954 | en_US |
dc.identifier.uri | http://dx.doi.org/10.1039/c4py00777h | en_US |
dc.identifier.uri | http://hdl.handle.net/11536/25309 | - |
dc.description.abstract | To obtain a poly(5,6-difluorobenzo-2,1,3-thiadiazole-4,7-diyl-alt-quaterchalcogenophene) (P(FBT-alt-CP4)) copolymer with a small optical band gap (E-g), and to achieve high short-circuit current (J(sc)) in the P(FBT-alt-CP4) : PC71BM polymer solar cells (PSCs), P(FBT-alt-Se2Th2), which contains selenophene-2,5-diyl (-Se-) pi-bridges, was synthesized. P(FBT-alt-Se2Th2) shows a Eg of 1.56 eV and is strongly aggregated in solution. Wide angle X-ray diffraction (WAXD) and grazing incidence X-ray diffraction (GI-XRD) results revealed the high solid-state order of P(FBT-alt-Se2Th2) and its edge-on orientation on the substrate. It delivered a high hole mobility (mu(h)) of 0.36 cm(2) V-1 s(-1) in organic field-effect transistors (OFETs). The strong aggregation tendency of P(FBT-alt-Se2Th2) caused large segregation domains in the P(FBT-alt-Se2Th2) : PC71BM thin film, as is seen in the high-resolution transmission electron microscopy (HR-TEM) images. The addition of 8 vol% of 1-chloronaphthalene (1-CN) effectively suppressed the aggregation and led to more homogeneous active layer morphology. The improved morphology enhanced the J(sc) of the PSCs. A superior PCE of 7.34% with a V-oc of 0.70 V, a J(sc) of 15.8 mA cm(-2), and a FF of 66.4% was achieved in the inverted P(FBT-alt-Se2Th2) : PC71BM PSCs. The strong aggregation of P(FBT-alt-Se2Th2) is likely related to its more straight conjugated backbone according to the theoretical calculation results of the FBT-alt-Se2Th2 repeat unit. | en_US |
dc.language.iso | en_US | en_US |
dc.title | Synthesis and morphological studies of a poly(5,6-difluorobenzo-2,1,3-thiadiazole-4,7-diyl-alt-quaterchalcogenophene) copolymer with 7.3% polymer solar cell efficiency | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.1039/c4py00777h | en_US |
dc.identifier.journal | POLYMER CHEMISTRY | en_US |
dc.citation.volume | 5 | en_US |
dc.citation.issue | 22 | en_US |
dc.citation.spage | 6472 | en_US |
dc.citation.epage | 6479 | en_US |
dc.contributor.department | 應用化學系 | zh_TW |
dc.contributor.department | Department of Applied Chemistry | en_US |
dc.identifier.wosnumber | WOS:000343703900010 | - |
dc.citation.woscount | 1 | - |
顯示於類別: | 期刊論文 |