Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Chia-Hao | en_US |
dc.contributor.author | Lai, Yu-Ying | en_US |
dc.contributor.author | Hsu, Jhih-Yang | en_US |
dc.contributor.author | Huang, Po-Kai | en_US |
dc.contributor.author | Cheng, Yen-Ju | en_US |
dc.date.accessioned | 2019-04-03T06:35:50Z | - |
dc.date.available | 2019-04-03T06:35:50Z | - |
dc.date.issued | 2017-04-01 | en_US |
dc.identifier.issn | 2041-6520 | en_US |
dc.identifier.uri | http://dx.doi.org/10.1039/c6sc04129a | en_US |
dc.identifier.uri | http://hdl.handle.net/11536/145153 | - |
dc.description.abstract | A ladder-type dithieno[3,2-b: 6,7-b'] fluorene (DTF), where the central fluorene is fused with two outer thiophene rings at its 2,3- and 6,7-junctions, is developed. The pentacyclic DTF monomers were polymerized with dithienodiketopyrrolopyrrole (DPP) acceptors to afford three alternating donor-acceptor copolymers PDTFDPP16, PDTFDPP20, and PDTFDPP32 incorporating different aliphatic side chains (R-1 group at DTF; R-2 group at the DPP moieties). The side-chain variations in the polymers play a significant role in determining not only the intrinsic molecular properties but also the intermolecular packing. As evidenced by the 2-dimensional GIXS measurements, PDTFDPP16 with octyl (R-1) and 2-ethylhexyl (R-2) side chains tends to align in an edge-on pi-stacking orientation, whereas PDTFDPP20 using 2-butyloctyl (R-1) and 2-ethylhexyl (R-2) adopts a predominately face-on orientation. PDTFDPP32 with the bulkiest 2-butyloctyl (R-1) and 2-octyldodecyl (R-2) side chains shows a less ordered amorphous character. The OFET device using PDTFDPP20 with a face-on orientation determined by GIXS measurements achieved a high hole-mobility of up to 5 cm(2) V-1 s(-1). The high rigidity and coplanarity of the DTF motifs play an important role in facilitating intramolecular 1-dimensional charge transport within the polymer backbones. The implementation of main-chain coplanarity and side-chain engineering strategies in this research provides in-depth insights into structure-property relationships for guiding development of high-mobility OFET polymers. | en_US |
dc.language.iso | en_US | en_US |
dc.title | Side-chain modulation of dithienofluorene-based copolymers to achieve high field-effect mobilities | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.1039/c6sc04129a | en_US |
dc.identifier.journal | CHEMICAL SCIENCE | en_US |
dc.citation.volume | 8 | en_US |
dc.citation.issue | 4 | en_US |
dc.citation.spage | 2942 | en_US |
dc.citation.epage | 2951 | 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:000397560500055 | en_US |
dc.citation.woscount | 17 | en_US |
Appears in Collections: | Articles |
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