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DC Field | Value | Language |
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dc.citation.number | 9 | - |
dc.citation.startPage | 2200445 | - |
dc.citation.title | SOLAR RRL | - |
dc.citation.volume | 6 | - |
dc.contributor.author | Yeop, Jiwoo | - |
dc.contributor.author | Park, Kwang Hun | - |
dc.contributor.author | Jeon, Seungju | - |
dc.contributor.author | Kim, Gayoung | - |
dc.contributor.author | Lee, Woojin | - |
dc.contributor.author | Song, Seyeong | - |
dc.contributor.author | Jung, Seo-Hyun | - |
dc.contributor.author | Kim, Yejin | - |
dc.contributor.author | Hwang, Do-Hoon | - |
dc.contributor.author | Lim, Bogyu | - |
dc.contributor.author | Kim, Jin Young | - |
dc.date.accessioned | 2023-12-21T13:42:16Z | - |
dc.date.available | 2023-12-21T13:42:16Z | - |
dc.date.created | 2022-08-11 | - |
dc.date.issued | 2022-09 | - |
dc.description.abstract | To successfully develop a regioregular polymer, poly[4,8-bis(5-(2-hexyldecyl)thiophen-2-yl)benzo[1,2-b:4,5-b ']dithiophene][5,5 '-bis(7-(4-(2-butyloctyl)thiophen-2-yl)-6-fluorobenzo[c][1,2,5]thiadiazol-4-yl)-2,2 '-bithiophene] (PDBD-FBT), a symmetric monomer synthesized in high yield by tin homo-coupling reactions. PDBD-FBT is suitable as a donor material in organic photovoltaics (OPVs) because it shows high crystallinity and strong face-on packing properties. These properties were amplified by thermal annealing (TA). This causes a power conversion efficiency (PCE) enhancement in PDBD-FBT-based OPVs. Using PDBD-FBT as a polymer donor and 2,2 '-((2Z,2 ' Z)-((12,13-bis(2-heptylundecyl)-3,9-diundecyl-12,13-dihydro-[1,2,5]thiadiazolo[3,4-e]thieno[2 '',3 '':4 ',5 ']thieno[2 ',3 ':4,5]pyrrolo[3,2-g]thieno[2 ',3 ':4,5]thieno[3,2-b]indole-2,10-diyl)bis(methanylylidene))bis(5,6-difluoro-3-oxo-2,3-dihydro-1H-indene-2,1-diylidene))dimalononitrile (Y6-HU) as an electron acceptor, a PCE of 7.91% was achieved without any additive and TA at optimized active layer film thickness of approximately 100 nm. After TA, a PCE of 12.53% was achieved with a 58% increase compared with the reference devices. Owing to the strong crystallinities, trap-assisted recombination occurs by excessively formed grain boundaries; however, efficient exciton dissociation sufficiently covers these drawbacks. Even in the approximately 340 nm-thick film condition, this tendency is more pronounced (73% PCE enhancement is observed from 6.17% to 10.69% of PCE in the without and with TA devices, respectively). Our study demonstrates that it is possible to manufacture thickness-insensitive OPVs based on regioregular polymers with strong crystallinity and face-on characteristics, thereby providing a solution to the thickness variation of large-area organic solar cell modules. | - |
dc.identifier.bibliographicCitation | SOLAR RRL, v.6, no.9, pp.2200445 | - |
dc.identifier.doi | 10.1002/solr.202200445 | - |
dc.identifier.issn | 2367-198X | - |
dc.identifier.scopusid | 2-s2.0-85134727711 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/59061 | - |
dc.identifier.wosid | 000830297400001 | - |
dc.language | 영어 | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.title | High-Crystalline Regioregular Polymer Semiconductor by Thermal Treatment for Thickness Tolerance Organic Photovoltaics | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Energy & Fuels; Materials Science, Multidisciplinary | - |
dc.relation.journalResearchArea | Energy & Fuels; Materials Science | - |
dc.type.docType | Article; Early Access | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | homo-coupling | - |
dc.subject.keywordAuthor | organic solar cells | - |
dc.subject.keywordAuthor | regioregular polymers | - |
dc.subject.keywordAuthor | thickness-insensitivity | - |
dc.subject.keywordPlus | CONJUGATED POLYMER | - |
dc.subject.keywordPlus | SOLAR-CELLS | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | FULLERENE | - |
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