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DC Field | Value | Language |
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dc.citation.startPage | 106718 | - |
dc.citation.title | NANO ENERGY | - |
dc.citation.volume | 92 | - |
dc.contributor.author | Fan, Qunping | - |
dc.contributor.author | Fu, Huiting | - |
dc.contributor.author | Luo, Zhenghui | - |
dc.contributor.author | Oh, Jiyeon | - |
dc.contributor.author | Fan, Baobing | - |
dc.contributor.author | Lin, Francis | - |
dc.contributor.author | Yang, Changduk | - |
dc.contributor.author | Jen, Alex K. -Y. | - |
dc.date.accessioned | 2023-12-21T14:39:45Z | - |
dc.date.available | 2023-12-21T14:39:45Z | - |
dc.date.created | 2021-12-10 | - |
dc.date.issued | 2022-02 | - |
dc.description.abstract | Due to the vigorous development of polymerized small-molecule acceptors (PSMAs), all-polymer solar cells (all-PSCs) have made tremendous advancement recently. However, their power conversion efficiencies (PCEs) are still restricted by the lack of PSMAs with desirable optoelectronic properties, especially the ability to capture the near-infrared photons. To resolve this, two near-infrared absorbing PSMAs, namely PY2Se-F and PY2Se-Cl, with a selenophene-fused core and halogenated end-group are developed. Combining the synergistic effects of selenium and fluorine (F)/chlorine (Cl) substitutions in broadening absorption and enhancing intermolecular interactions, PY2Se-F and PY2Se-Cl show significantly red-shifted absorption (30-40 nm) and reasonably deep-shifted lowest unoccupied molecular orbital (LUMO) levels compared with the pristine PY2S-H and fluorinated PY2S-F. When replacing F with Cl on the end-group, the PY2Se-Cl shows a better blend morphology with polymer donor PM6, compared with the PY2Se-F-based one, leading to better charge transport. As a result, the PM6:PY2Se-Cl-based all-PSCs achieve an impressive PCE of 16.1% with both high short-circuit current density (J(sc)) of 24.5 mA cm(-2) and fill factor (FF) of 0.743, which are among the highest values in the reported binary all-PSCs so far. Notably, this is the first example of chlorinated end-group derived PSMAs. Combining with the low-cost merit of chlorination, PY2Se-Cl shows great potential in the practical applications of efficient all-PSCs. | - |
dc.identifier.bibliographicCitation | NANO ENERGY, v.92, pp.106718 | - |
dc.identifier.doi | 10.1016/j.nanoen.2021.106718 | - |
dc.identifier.issn | 2211-2855 | - |
dc.identifier.scopusid | 2-s2.0-85119076429 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/55104 | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S2211285521009678?via%3Dihub | - |
dc.identifier.wosid | 000720276600001 | - |
dc.language | 영어 | - |
dc.publisher | Elsevier BV | - |
dc.title | Near-infrared absorbing polymer acceptors enabled by selenophene-fused core and halogenated end-group for binary all-polymer solar cells with efficiency over 16% | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied | - |
dc.relation.journalResearchArea | Chemistry; Science & Technology - Other Topics; Materials Science; Physics | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | Halogenation | - |
dc.subject.keywordAuthor | All-polymer solar cells | - |
dc.subject.keywordAuthor | Near-infrared absorbing polymer acceptors | - |
dc.subject.keywordAuthor | Power conversion efficiencies | - |
dc.subject.keywordAuthor | Selenophene | - |
dc.subject.keywordPlus | NONFULLERENE ACCEPTORS | - |
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