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DC Field | Value | Language |
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dc.citation.endPage | 5363 | - |
dc.citation.number | 14 | - |
dc.citation.startPage | 5352 | - |
dc.citation.title | MACROMOLECULES | - |
dc.citation.volume | 51 | - |
dc.contributor.author | Chen, Jianhua | - |
dc.contributor.author | Yan, Zhenglong | - |
dc.contributor.author | Tang, Linjing | - |
dc.contributor.author | Uddin, Mohammad Afsar | - |
dc.contributor.author | Yu, Jianwei | - |
dc.contributor.author | Zhou, Xin | - |
dc.contributor.author | Yang, Kun | - |
dc.contributor.author | Tang, Yumin | - |
dc.contributor.author | Shin, Tae Joo | - |
dc.contributor.author | Woo, Han Young | - |
dc.contributor.author | Guo, Xugang | - |
dc.date.accessioned | 2023-12-21T20:37:13Z | - |
dc.date.available | 2023-12-21T20:37:13Z | - |
dc.date.created | 2018-08-30 | - |
dc.date.issued | 2018-07 | - |
dc.description.abstract | A new building block, 1,4-di(3-alkoxy-2-thienyl)-2,5-difluorophenylene (DOTFP) with several desirable features such as high backbone planarity, suitably lying highest occupied molecular orbital (HOMO), and good solubility, was developed by inserting an electron-deficient difluorophenylene into the 3,3'-dialkoxy-2,2'-bithiophene (BTOR) unit. Three regioregular D-A(1)-D-A2 type polymers based on DOTFP and benzothiadiazole (BT) derivatives were synthesized and characterized by comparing with a D-A type BTOR-based polymer. The content of highly electron-rich alkoxythiophene is reduced by half in the DOTFP-based polymers versus that of the BTOR-based polymer analogue, which results in a deeper HOMO level and benefits high open-circuit voltage (V-oc) in polymer solar cells (PSCs). Consequently, the DOTFP-ffBT-based solar cells exhibited a significantly improved power conversion efficiency (PCE) of 8.7% and an increased V-oc of 0.84 V compared to the BTOR-ffBT-based solar cells with a PCE of 2.6% and a V-oc of 0.49 V. Additionally, the DOTFP-based polymers showed improved charge transport properties and film morphology than the BTOR-based polymer BTOR-ffBT, resulting in simultaneous enhancement of the short-circuit current (J(sc)) and fill factor (FF) in PSCs. These results demonstrate the great promise of the DOTFP building block for the construction of high-performance photovoltaic polymer semiconductors with increased V(oc)s. | - |
dc.identifier.bibliographicCitation | MACROMOLECULES, v.51, no.14, pp.5352 - 5363 | - |
dc.identifier.doi | 10.1021/acs.macromol.8b00975 | - |
dc.identifier.issn | 0024-9297 | - |
dc.identifier.scopusid | 2-s2.0-85050668834 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/24725 | - |
dc.identifier.url | https://pubs.acs.org/doi/10.1021/acs.macromol.8b00975 | - |
dc.identifier.wosid | 000440105200034 | - |
dc.language | 영어 | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | 1,4-Di(3-alkoxy-2-thienyI)-2,5-difluorophenylene: A Building Block Enabling High-Performance Polymer Semiconductors with Increased Open-Circuit Voltages | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Polymer Science | - |
dc.relation.journalResearchArea | Polymer Science | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | ORGANIC SOLAR-CELLS | - |
dc.subject.keywordPlus | INTRAMOLECULAR NONCOVALENT INTERACTIONS | - |
dc.subject.keywordPlus | POWER CONVERSION EFFICIENCY | - |
dc.subject.keywordPlus | FIELD-EFFECT TRANSISTORS | - |
dc.subject.keywordPlus | THIN-FILM TRANSISTORS | - |
dc.subject.keywordPlus | TO-HEAD LINKAGE | - |
dc.subject.keywordPlus | CONJUGATED POLYMERS | - |
dc.subject.keywordPlus | MOLECULAR DESIGN | - |
dc.subject.keywordPlus | DONOR | - |
dc.subject.keywordPlus | FLUORINATION | - |
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