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DC Field | Value | Language |
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dc.citation.endPage | 43185 | - |
dc.citation.number | 36 | - |
dc.citation.startPage | 43174 | - |
dc.citation.title | ACS APPLIED MATERIALS & INTERFACES | - |
dc.citation.volume | 13 | - |
dc.contributor.author | Lee, Young Woong | - |
dc.contributor.author | Yeop, Jiwoo | - |
dc.contributor.author | Lim, Hyojin | - |
dc.contributor.author | Park, Won-Woo | - |
dc.contributor.author | Joung, Joonyoung Francis | - |
dc.contributor.author | Park, Sungnam | - |
dc.contributor.author | Kwon, Oh Hoon | - |
dc.contributor.author | Kim, Jin Young | - |
dc.contributor.author | Woo, Han Young | - |
dc.date.accessioned | 2023-12-21T15:16:53Z | - |
dc.date.available | 2023-12-21T15:16:53Z | - |
dc.date.created | 2021-09-08 | - |
dc.date.issued | 2021-09 | - |
dc.description.abstract | Two kinds of dumbbell-shaped acceptor-donor-acceptor (A-D-A)-type triad single-component (SC) photovoltaic molecules based on a benzodithiophene-rhodanine (BDTRh) core and [6,6]-phenyl-C-61 butyric acid (PC(61)BA) termini, BDTRh-C-2-PC(61)BA and BDTRh-C-10-PC(61)BA, were synthesized by modulating the alkyl (C2 and C10) spacer lengths. Both SC photovoltaic structures had similar UV-vis spectra in solution, but BDTRh-C-10-PC(61)BA showed a significantly higher absorption coefficient as a thin film. In films, a more facile intermolecular photo-induced charge transfer was observed for BDTRh-C-10-PC(61)BA in the broad-band transient absorption measurements. BDTRh-C-10-PC(61)BA also exhibited a higher hole mobility (by 25 times) and less bimolecular recombination than BDTRh-C-2-PC(61)BA By plotting the normalized external quantum efficiency data, a higher charge-transfer state was measured for BDTRh-C-10-PC(61)BA, reducing its voltage loss. A higher power conversion efficiency of similar to 2% was obtained for BDTRh-C-10-PC(61)BA, showing higher open-circuit voltage, short-circuit current density, and fill factor than those of BDTRh-C-2-PC(61)BA devices. The different carrier dynamics, voltage loss, and optical and photoelectrical characteristics depending on the spacer length were interpreted in terms of the film morphology. The longer decyl spacer in BDTRh-C-10-PC(61)BA afforded a significantly enhanced intermolecular ordering of the p-type core compared to BDTRh-C-2-PC(61)BA, suggesting that the alkyl spacer length plays a critical role in controlling the intermolecular packing interaction. | - |
dc.identifier.bibliographicCitation | ACS APPLIED MATERIALS & INTERFACES, v.13, no.36, pp.43174 - 43185 | - |
dc.identifier.doi | 10.1021/acsami.1c14901 | - |
dc.identifier.issn | 1944-8244 | - |
dc.identifier.scopusid | 2-s2.0-85114602198 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/53856 | - |
dc.identifier.url | https://pubs.acs.org/doi/10.1021/acsami.1c14901 | - |
dc.identifier.wosid | 000697282300080 | - |
dc.language | 영어 | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Fullerene-Based Triads with Controlled Alkyl Spacer Length as Photoactive Materials for Single-Component Organic Solar Cells | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & NanotechnologyMaterials Science, Multidisciplinary | - |
dc.relation.journalResearchArea | Science & Technology - Other TopicsMaterials Science | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | organic solar cellsmorphologysingle-component organic solar cellsorganic photovoltaicsfullerene-based triads | - |
dc.subject.keywordPlus | ACCEPTOR BLOCK-COPOLYMEREFFICIENCYPERFORMANCEABSORPTIONSTABILITYPOLYMERSDYNAMICSENABLESHYBRIDSENERGY | - |
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