Regulating the Aggregation of Unfused Non-Fullerene Acceptors via Molecular Engineering towards Efficient Polymer Solar Cells
DC Field | Value | Language |
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dc.contributor.author | Li, Yuxiang | - |
dc.contributor.author | Fu, Huiting | - |
dc.contributor.author | Wu, Ziang | - |
dc.contributor.author | Wu, Xin | - |
dc.contributor.author | Wang, Mei | - |
dc.contributor.author | Qin, Hongmei | - |
dc.contributor.author | Lin, Francis | - |
dc.contributor.author | Woo, Han Young | - |
dc.contributor.author | Jen, Alex K-Y | - |
dc.date.accessioned | 2022-02-21T13:41:40Z | - |
dc.date.available | 2022-02-21T13:41:40Z | - |
dc.date.created | 2022-02-09 | - |
dc.date.issued | 2021-09-06 | - |
dc.identifier.issn | 1864-5631 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/136384 | - |
dc.description.abstract | Tuning molecular aggregation via structure design to manipulate the film morphology still remains as a challenge for polymer solar cells based on unfused non-fullerene acceptors (UF-NFAs). Herein, a strategy was developed to modulate the aggregation patterns of UF-NFAs by systematically varying the pi-bridge (D) unit and central core (A') unit in A-D-A'-D-A framework (A and D refer to electron-withdrawing and electron-donating moieties, respectively). Specifically, the quantified contents of H- or J-aggregation and crystallite disorder of three UF-NFAs (BDIC2F, BCIC2F, and TCIC2F) were analyzed via UV/Vis spectrometry and grazing incidence X-ray scattering. The results showed that the H-aggregate-dominated BCIC2F with less crystallite disorder exhibited a more favorable blend morphology with polymer donor PBDB-T (poly[(2,6-(4,8-bis(5-(2-ethylhexyl)thiophen-2-yl)benzo[1,2-b:4,5-b']dithiophene)-co-(1,3-di(5-thiophene-2-yl)-5,7-bis(2-ethylhexyl)benzo[1,2-c:4,5-c']dithiophene-4,8-dione)]) relative the other two UF-NFAs, resulting in improved exciton dissociation and charge tranport. Consequently, photovoltaic devices based on BCIC2F delivered a promising power conversion efficiency of 12.4 % with an exceptionally high short-circuit current density of 22.1 mA cm(-2). | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.subject | ELECTRON-ACCEPTORS | - |
dc.subject | STRATEGY | - |
dc.subject | PACKING | - |
dc.subject | DESIGN | - |
dc.title | Regulating the Aggregation of Unfused Non-Fullerene Acceptors via Molecular Engineering towards Efficient Polymer Solar Cells | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Woo, Han Young | - |
dc.identifier.doi | 10.1002/cssc.202100746 | - |
dc.identifier.scopusid | 2-s2.0-85106439260 | - |
dc.identifier.wosid | 000654181700001 | - |
dc.identifier.bibliographicCitation | CHEMSUSCHEM, v.14, no.17, pp.3579 - 3589 | - |
dc.relation.isPartOf | CHEMSUSCHEM | - |
dc.citation.title | CHEMSUSCHEM | - |
dc.citation.volume | 14 | - |
dc.citation.number | 17 | - |
dc.citation.startPage | 3579 | - |
dc.citation.endPage | 3589 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Green & Sustainable Science & Technology | - |
dc.subject.keywordPlus | DESIGN | - |
dc.subject.keywordPlus | ELECTRON-ACCEPTORS | - |
dc.subject.keywordPlus | PACKING | - |
dc.subject.keywordPlus | STRATEGY | - |
dc.subject.keywordAuthor | aggregation | - |
dc.subject.keywordAuthor | morphology | - |
dc.subject.keywordAuthor | organic semiconductors | - |
dc.subject.keywordAuthor | photovoltaics | - |
dc.subject.keywordAuthor | solar cells | - |
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