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DC Field | Value | Language |
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dc.citation.endPage | 23905 | - |
dc.citation.number | 45 | - |
dc.citation.startPage | 23894 | - |
dc.citation.title | Journal of Materials Chemistry A | - |
dc.citation.volume | 8 | - |
dc.contributor.author | Ryu, Hwa Sook | - |
dc.contributor.author | Lee, Hyun Gyeong | - |
dc.contributor.author | Shin, Sang-Chul | - |
dc.contributor.author | Park, Jooho | - |
dc.contributor.author | Kim, Sang Hyeon | - |
dc.contributor.author | Kim, Eun Ji | - |
dc.contributor.author | Shin, Tae Joo | - |
dc.contributor.author | Shim, Jae Won | - |
dc.contributor.author | Kim, Bumjoon J. | - |
dc.contributor.author | Woo, Han Young | - |
dc.date.accessioned | 2023-12-21T16:39:25Z | - |
dc.date.available | 2023-12-21T16:39:25Z | - |
dc.date.created | 2020-12-08 | - |
dc.date.issued | 2020-12 | - |
dc.description.abstract | Two types of small molecule nonfullerene acceptors (IDICO1 and IDICO2) based on 2,2 '-((2Z,2 ' Z)-((4,4,9,9-tetrahexyl-4,9-dihydro-s-indaceno[1,2-b:5,6-b ']dithiophene-2,7-diyl)bis(methanylylidene))bis(3-oxo-2,3-dihydro-1H-indene-2,1-diylidene))dimalononitrile (IDIC) are synthesized by attaching octyl side-chains onto terminal end groups. The alkyl substitution increases the lowest unoccupied molecular orbitals (-3.81 to -3.86 eV) of the two acceptors, compared to that of IDIC (-3.94 eV). Interestingly, the IDICO1 and IDICO2 films have higher integrated absorption coefficients (1.49 x 10(7) cm(-1)) than the IDIC (1.29 x 10(7) cm(-1)) film. Also, the electron mobilities of IDICO1 and IDICO2 are approximately twice as high as that of IDIC. The terminal octyl substitution also improves the miscibility with a donor polymer (PBDB-T) to form well-intermixed blends with a decreased pi-pi stacking distance. As a result, their photovoltaic devices exhibit significant improvements in both the open-circuit voltage and short-circuit current density, compared to those of the reference PBDB-T:IDIC device, exhibiting maximum power conversion efficiencies of up to 9.64%, 20.4%, and 1.68% under 1-sun, 1000-lx LED, and halogen lamp illumination, respectively, which are significantly higher than those of PBDB-T:IDIC (7.2%, 11.7%, and 1.2%, respectively). It is worth noting that a maximum power density of 141.4 mu W cm(-2) is achieved for the PBDB-T:IDICO2-based device under a halogen lamp, which is the highest value reported to date among those achieved under indoor lighting conditions. | - |
dc.identifier.bibliographicCitation | Journal of Materials Chemistry A, v.8, no.45, pp.23894 - 23905 | - |
dc.identifier.doi | 10.1039/d0ta07684h | - |
dc.identifier.issn | 2050-7488 | - |
dc.identifier.scopusid | 2-s2.0-85096912863 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/48822 | - |
dc.identifier.url | https://pubs.rsc.org/en/content/articlelanding/2020/ta/d0ta07684h#!divAbstract | - |
dc.identifier.wosid | 000593047100016 | - |
dc.language | 영어 | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.title | Terminal alkyl substitution in an A-D-A-type nonfullerene acceptor: simultaneous improvements in the open-circuit voltage and short-circuit current for efficient indoor power generation | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical; Energy & Fuels; Materials Science, Multidisciplinary | - |
dc.relation.journalResearchArea | Chemistry; Energy & Fuels; Materials Science | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | RING ELECTRON-ACCEPTOR | - |
dc.subject.keywordPlus | SIDE-CHAIN | - |
dc.subject.keywordPlus | LARGE-AREA | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | FULLERENE | - |
dc.subject.keywordPlus | CRYSTALLIZATION | - |
dc.subject.keywordPlus | RESISTANCE | - |
dc.subject.keywordPlus | DESIGN | - |
dc.subject.keywordPlus | POLYMER SOLAR-CELLS | - |
dc.subject.keywordPlus | ORGANIC PHOTOVOLTAIC CELLS | - |
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