Full metadata record
DC Field | Value | Language |
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dc.citation.endPage | 42109 | - |
dc.citation.number | 72 | - |
dc.citation.startPage | 42096 | - |
dc.citation.title | RSC ADVANCES | - |
dc.citation.volume | 9 | - |
dc.contributor.author | Lee, Myeongjae | - |
dc.contributor.author | Kim, Taehyo | - |
dc.contributor.author | Nguyen, Hoai Van T. | - |
dc.contributor.author | Cho, Hye Won | - |
dc.contributor.author | Lee, Kyung-Koo | - |
dc.contributor.author | Choi, Jong-Ho | - |
dc.contributor.author | Kim, BongSoo | - |
dc.contributor.author | Kim, Jin Young | - |
dc.date.accessioned | 2023-12-21T18:12:57Z | - |
dc.date.available | 2023-12-21T18:12:57Z | - |
dc.date.created | 2020-01-29 | - |
dc.date.issued | 2019-12 | - |
dc.description.abstract | We designed and synthesized regio-regular alternating diketopyrrolopyrrole (DPP)-based D1–A–D2–A terpolymers (PDPPF2T2DPP-T2, PDPPF2T2DPP-TVT, and PDPPF2T2DPP-DTT) using a primary donor (D1) [3,3′-difluoro-2,2′-bithiophene (F2T2)] and a secondary donor (D2) [2,2′-bithiophene (T2), (E)-1,2-di(thiophen-2-yl)ethene (TVT), or dithieno[3,2-b:2′,3′-d]thiophene (DTT)]. A PDPP2DT-F2T2 D–A polymer was synthesized as well to compare optical, electronic, and photovoltaic properties. The absorption peaks of the terpolymers (PDPPF2T2DPP-T2, PDPPF2T2DPP-TVT, and PDPPF2T2DPP-DTT) were longer (λmax = 801–810 nm) than the peak of the PDPP2DT-F2T2 polymer (λmax = 799 nm), which is associated with the high-lying HOMO levels of the terpolymers (−5.08 to −5.13 eV) compared with the level of the PDPP2DT-F2T2 polymer (−5.38 eV). The photovoltaic properties of these DPP-based polymers were investigated under simulated AM 1.5G sunlight (100 mW cm−2) with a conventional structure (ITO/PEDOT:PSS/polymer:PC71BM/Al). The open-circuit voltages (Voc) of photovoltaic devices containing the terpolymers were slightly lower (0.68–0.70 V) than the Voc of the device containing the PDPP2DT-F2T2 polymer (0.79 V). The short-circuit current (Jsc) of the PDPPF2T2DPP-DTT device was significantly improved (14.14 mA cm−2) compared with that of the PDPP2DT-F2T2 device (8.29 mA cm−2). As a result, the power conversion efficiency (PCE) of the PDPPF2T2DPP-DTT device (6.35%) was increased by 33% compared with that of the simple D–A-type PDPP2DT-F2T2 device (4.78%). The highest Jsc and PCE values (the PDPPF2T2DPP-DTT device) were attributed to an optimal nanoscopically mixed morphology and strong interchain packing with a high face-on orientation in the blend film state. The study demonstrated that our strategy of using multiple donors in a regio-regular alternating fashion could fine-tune the optical, electronic, and morphological properties of D–A-type polymers, enhancing the performance of polymer solar cells. | - |
dc.identifier.bibliographicCitation | RSC ADVANCES, v.9, no.72, pp.42096 - 42109 | - |
dc.identifier.doi | 10.1039/C9RA08858J | - |
dc.identifier.issn | 2046-2069 | - |
dc.identifier.scopusid | 2-s2.0-85077322200 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/32006 | - |
dc.identifier.url | https://pubs.rsc.org/en/content/articlelanding/2019/RA/C9RA08858J#!divAbstract | - |
dc.identifier.wosid | 000516545700014 | - |
dc.language | 영어 | - |
dc.publisher | Royal Society of Chemistry | - |
dc.title | Regio-regular alternating diketopyrrolopyrrole-based D-1-A-D-2-A terpolymers for the enhanced performance of polymer solar cells | - |
dc.type | Article | - |
dc.description.isOpenAccess | TRUE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | CONJUGATED POLYMER | - |
dc.subject.keywordPlus | BANDGAP POLYMER | - |
dc.subject.keywordPlus | MOBILITY | - |
dc.subject.keywordPlus | FIELD | - |
dc.subject.keywordPlus | EFFICIENCY | - |
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