https://scholars.lib.ntu.edu.tw/handle/123456789/504207
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.author | Raja, R. | en_US |
dc.contributor.author | Luo, S. | en_US |
dc.contributor.author | Hsiow, C.-Y. | en_US |
dc.contributor.author | Rwei, S.-P. | en_US |
dc.contributor.author | Wang, L. | en_US |
dc.creator | Wang, L.;Rwei, S.-P.;Hsiow, C.-Y.;Luo, S.;Raja, R. | - |
dc.date.accessioned | 2020-06-23T09:44:10Z | - |
dc.date.available | 2020-06-23T09:44:10Z | - |
dc.date.issued | 2017 | - |
dc.identifier.issn | 20734360 | - |
dc.identifier.uri | https://scholars.lib.ntu.edu.tw/handle/123456789/504207 | - |
dc.description.abstract | Novel two-dimensional conjugated copolymer, abbreviated as PDTBSeVTT-2TF, containing electron-deficient 4,7-di(thiophen-2-yl)benzo[c][1,2,5]selenodiazole (DTBSe) unit, conjugated vinyl-terthiophene (VTT) side chain and 3,30-difluoro-2,20-bithiophene (2TF) was designed and synthesized using microwave-assisted Stille cross-coupling polymerization. UV-visible absorption and cyclic voltammetry studies revealed that this copolymer possesses a strong and broad absorption in the range of 300-800 nm and a narrow optical bandgap (Eg) of 1.57 eV with low-lying HOMO and LUMO energy levels. Further, the bulk heterojunction polymer solar cells (PSCs) were fabricated using PDTBSeVTT-2TF as donor and [6,6]-phenyl-C71-butyric acid methyl ester (PC71BM) as acceptor with an inverted device structure of ITO/ZnO/PDTBSeVTT-2TF:PC71BM/V2O5/Ag. The processing temperature of blend solution for preparing PDTBSeVTT-2TF:PC71BM active layer showed obvious impact on the photovoltaic performance of solar devices. The cell fabricated from the blend solution at 65 °C exhibited enhanced power conversion efficiencies (PCE) of 5.11% with a Jsc of 10.99 mA/cm-2 compared with the one at 50 °C, which had a PCE of 4.69% with a Jsc of 10.10 mA/cm-2. This enhancement is due to the dissolution of PDTBSeVTT-2TF clusters into single molecules and small aggregates, improving the miscibility between the polymer and PC71BM and thus increasing the donor/acceptor interface. © 2017 by the authors. | - |
dc.publisher | MDPI AG | - |
dc.relation.ispartof | Polymers | - |
dc.subject | Benzoselenodiazole; Difluoro-bithiophene; Polymer solar cell; Vinyl-terthiophene | - |
dc.subject.classification | [SDGs]SDG7 | - |
dc.subject.other | Butyric acid; Conjugated polymers; Cyclic voltammetry; Heterojunctions; Photoelectrochemical cells; Photovoltaic cells; Processing; Solar cells; Solar power generation; Benzoselenodiazole; Bithiophenes; Inverted device structures; Polymer photovoltaic cells; Polymer solar cell (PSCs); Power conversion efficiencies; Stille cross coupling polymerization; Terthiophenes; Polymer solar cells | - |
dc.title | Novel two-dimensional conjugated polymer containing fluorinated bithiophene as donor and benzoselenodiazole as acceptor units with vinyl-terthiophene pendants for polymer photovoltaic cells | en_US |
dc.type | journal article | en |
dc.identifier.doi | 10.3390/polym9070272 | - |
dc.relation.pages | 272 | - |
dc.relation.journalvolume | 9 | - |
dc.relation.journalissue | 7 | - |
item.cerifentitytype | Publications | - |
item.fulltext | no fulltext | - |
item.openairecristype | http://purl.org/coar/resource_type/c_6501 | - |
item.openairetype | journal article | - |
item.grantfulltext | none | - |
crisitem.author.dept | Polymer Science and Engineering | - |
crisitem.author.dept | Center for Condensed Matter Sciences | - |
crisitem.author.parentorg | College of Engineering | - |
crisitem.author.parentorg | Others: University-Level Research Centers | - |
顯示於: | 凝態科學研究中心 |
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