Full metadata record
DC Field | Value | Language |
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dc.contributor.author | Yu, Seong Hoon | - |
dc.contributor.author | Park, Kwang Hun | - |
dc.contributor.author | Kim, Yun-Hi | - |
dc.contributor.author | Chung, Dae Sung | - |
dc.contributor.author | Kwon, Soon-Ki | - |
dc.date.accessioned | 2017-11-26T08:02:55Z | - |
dc.date.available | 2017-11-26T08:02:55Z | - |
dc.date.created | 2017-11-01 | - |
dc.date.issued | 2017-06 | - |
dc.identifier.issn | 0024-9297 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11750/4726 | - |
dc.description.abstract | To improve the charge carrier mobility of diketopyrrolopyrrole donor-acceptor copolymer semiconductors, the length of the donor building block is controlled using vinylene moieties, and its effects on crystalline structure and charge transport are systematically studied. We synthesize P29-DPP-TBT with two vinylene linkages between thiophene units and compare it with P29-DPP-TVT with single vinylene linkage. Density functional theory calculations predict enhanced backbone planarity of P29-DPP-TBT compared to P29-DPP-TVT, which can be related to the increased conjugation length of P29-DPP-TBT as proved by the increased free exciton bandwidth extracted from UV-vis absorption spectra and the wavenumber shift of the C-C peaks to higher values in Raman spectra. From two-dimensional grazing incident X-ray diffraction studies, it is turned out that the paracrystalline disorder is lower in P29-DPP-TBT than in P29-DPP-TVT. Near-edge X-ray absorption fine structure spectroscopy reveal that more edge-on structure of polymer backbone is formed in the case of P29-DPP-TBT. By measuring the temperature dependence of the charge carrier mobilities, it is turned out that the activation energy for charge hopping is lower for P29-DPP-TBT than for P29-DPP-TVT. Collectively, these results imply that the substitution of extended π-conjugated donor moiety of polymeric semiconductors can yield a more planar backbone structure and thus enhanced intermolecular interaction which enables more perfect crystalline structure as well as enhanced charge transport behavior. © 2017 American Chemical Society. | - |
dc.language | English | - |
dc.publisher | American Chemical Society | - |
dc.title | Fine Molecular Tuning of Diketopyrrolopyrrole-Based Polymer Semiconductors for Efficient Charge Transport: Effects of Intramolecular Conjugation Structure | - |
dc.type | Article | - |
dc.identifier.doi | 10.1021/acs.macromol.7b00624 | - |
dc.identifier.scopusid | 2-s2.0-85020720918 | - |
dc.identifier.bibliographicCitation | Macromolecules, v.50, no.11, pp.4227 - 4234 | - |
dc.description.isOpenAccess | FALSE | - |
dc.subject.keywordPlus | Carrier Mobility | - |
dc.subject.keywordPlus | Carrier Transport | - |
dc.subject.keywordPlus | Charge Carriers | - |
dc.subject.keywordPlus | Crystalline Materials | - |
dc.subject.keywordPlus | Crystalline Structure | - |
dc.subject.keywordPlus | Density Functional Theory | - |
dc.subject.keywordPlus | Donor Acceptor Copolymers | - |
dc.subject.keywordPlus | Field Effect Transistors | - |
dc.subject.keywordPlus | Grazing Incident X Ray Diffractions | - |
dc.subject.keywordPlus | High Hole Mobility | - |
dc.subject.keywordPlus | High Performance | - |
dc.subject.keywordPlus | Intermolecular Interactions | - |
dc.subject.keywordPlus | Low Voltage Operation | - |
dc.subject.keywordPlus | Oxide Gate Dielectrics | - |
dc.subject.keywordPlus | Polymer Semiconductors | - |
dc.subject.keywordPlus | Polymeric Semiconductors | - |
dc.subject.keywordPlus | Polymers | - |
dc.subject.keywordPlus | Temperature Dependence | - |
dc.subject.keywordPlus | Temperature Distribution | - |
dc.subject.keywordPlus | Thin Filmsactivation Energy | - |
dc.subject.keywordPlus | Ultraviolet Spectroscopy | - |
dc.subject.keywordPlus | UV Visible Absorption Spectra | - |
dc.subject.keywordPlus | X Ray Absorption | - |
dc.subject.keywordPlus | X Ray Absorption Fine Structure Spectroscopy | - |
dc.subject.keywordPlus | X Ray Absorption Near Edge Structure Spectroscopy | - |
dc.subject.keywordPlus | X Ray Diffraction | - |
dc.citation.endPage | 4234 | - |
dc.citation.number | 11 | - |
dc.citation.startPage | 4227 | - |
dc.citation.title | Macromolecules | - |
dc.citation.volume | 50 | - |
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