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DC Field | Value | Language |
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dc.citation.number | 15 | - |
dc.citation.startPage | 1700349 | - |
dc.citation.title | ADVANCED ENERGY MATERIALS | - |
dc.citation.volume | 7 | - |
dc.contributor.author | Kang, So-Huei | - |
dc.contributor.author | Kumari, Tanya | - |
dc.contributor.author | Lee, Sang Myeon | - |
dc.contributor.author | Jeong, Mingyu | - |
dc.contributor.author | Yang, Changduk | - |
dc.date.accessioned | 2023-12-21T22:06:49Z | - |
dc.date.available | 2023-12-21T22:06:49Z | - |
dc.date.created | 2017-06-20 | - |
dc.date.issued | 2017-08 | - |
dc.description.abstract | Dithienyldiketopyrrolopyrrole (DPP2T) and thieno[3,2-b]thiophene (TT) building blocks, enabling a large intermolecular overlap through π-π stacking, into an amorphous-like polymer composed of benzo(1,2-b:4,5-b′)dithiophene (BDT) and fluorinated thieno[3,4-b]thiophene (QTT), are introduced. Herein, through the variation of relative compositions of DPP2T-TT and BDT-QTT in the polymer backbone, the synthesis and characterization of a series of condensed random 2D-2A quarterpolymers with two reference alternating copolymers are reported. The best power conversion efficiency (PCE) of 9.45% is achieved for the optimum composition due to the synergistic effects such as improved photon absorption and reduced recombination loss, and optimized blend morphology via a change in the crystallinity and orientation of the blend films compared to the alternating copolymers. Moreover, by isolating higher molecular weight and narrower polydispersity fractions of the quarterpolymer via a marginal solvent-soaking technique, the PCE is further boosted to 10.30%, which is among the highest PCE reported to date for random polymer-based PSCs. Therefore, this simple 2D-2A strategy, reported for the first time, should be extended to numerous quaterpolymer systems, greatly accelerating random polymer systems toward further improving PSCs. | - |
dc.identifier.bibliographicCitation | ADVANCED ENERGY MATERIALS, v.7, no.15, pp.1700349 | - |
dc.identifier.doi | 10.1002/aenm.201700349 | - |
dc.identifier.issn | 1614-6832 | - |
dc.identifier.scopusid | 2-s2.0-85018946270 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/22655 | - |
dc.identifier.url | http://onlinelibrary.wiley.com/doi/10.1002/aenm.201700349/abstract | - |
dc.identifier.wosid | 000407275300027 | - |
dc.language | 영어 | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.title | Densely Packed Random Quarterpolymers Containing Two Donor and Two Acceptor Units: Controlling Absorption Ability and Molecular Interaction to Enable Enhanced Polymer Photovoltaic Devices | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical; Energy & Fuels; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter | - |
dc.relation.journalResearchArea | Chemistry; Energy & Fuels; Materials Science; Physics | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | 2D-2A strategy | - |
dc.subject.keywordAuthor | Benzodithiophene | - |
dc.subject.keywordAuthor | Diketopyrrolopyrrole | - |
dc.subject.keywordAuthor | Organic solar cells | - |
dc.subject.keywordAuthor | Quarterpolymers | - |
dc.subject.keywordPlus | ORGANIC SOLAR-CELLS | - |
dc.subject.keywordPlus | POWER CONVERSION EFFICIENCY | - |
dc.subject.keywordPlus | OPEN-CIRCUIT VOLTAGE | - |
dc.subject.keywordPlus | ENERGY-LOSSES | - |
dc.subject.keywordPlus | MORPHOLOGY CONTROL | - |
dc.subject.keywordPlus | RECOMBINATION | - |
dc.subject.keywordPlus | COPOLYMERS | - |
dc.subject.keywordPlus | TRANSISTORS | - |
dc.subject.keywordPlus | THIENOTHIOPHENES | - |
dc.subject.keywordPlus | POLYFLUORENE | - |
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