DC Field | Value | Language |
---|---|---|
dc.contributor.author | Han, Daehee | ko |
dc.contributor.author | Kim, Geon-U | ko |
dc.contributor.author | Lim, Chulhee | ko |
dc.contributor.author | Lee, Dong-Chan | ko |
dc.contributor.author | Lee, Seung Jin | ko |
dc.contributor.author | Jeong, Dahyun | ko |
dc.contributor.author | Cho, Shinuk | ko |
dc.contributor.author | Lee, Changyeon | ko |
dc.contributor.author | Kim, Bumjoon J. | ko |
dc.date.accessioned | 2023-06-23T03:02:03Z | - |
dc.date.available | 2023-06-23T03:02:03Z | - |
dc.date.created | 2023-06-15 | - |
dc.date.created | 2023-06-15 | - |
dc.date.created | 2023-06-15 | - |
dc.date.issued | 2023-05 | - |
dc.identifier.citation | CHEMISTRY OF MATERIALS, v.35, no.11, pp.4318 - 4328 | - |
dc.identifier.issn | 0897-4756 | - |
dc.identifier.uri | http://hdl.handle.net/10203/308703 | - |
dc.description.abstract | Use of poly(3-hexylthiophene) (P3HT) enables low-cost manufacture of organic solar cells (OSCs). However, the power conversion efficiencies (PCEs) of the P3HT-based OSCs should be further enhanced. Herein, we report the development of noncovalently fused nonfullerene acceptors (NFAs) that realize high-performance P3HT-based OSCs (>9%). We synthesize regioisomeric NFAs (C4-In and C4-Out) in which the positions of the methyl substituents of their end groups differ. Interestingly, the molecular orientation of the regioisomers in thin film is found to change from edge-on (C4-Out) to face-on (C4-In) orientation, allowing a model study exploring the impact of the microstructure of NFAs on the performance of P3HT-based OSCs. We find that face-on oriented C4-In facilitates both electron and hole transport in a P3HT-based OSC along the vertical direction. In addition, C4-In shows reduced trap densities and suppressed charge recombination in the P3HT:C4-In OSC due to its lower energetic disorder relative to C4-Out. As a result, the P3HT:C4-In OSC (PCE = 9.35%) outperforms a P3HT:C4-Out OSC (PCE = 8.12%) owing to simultaneous enhancement in open-circuit voltage, short-circuit current density, and fill factor. This study demonstrates the importance of molecular orientation of NFAs for developing high-performance P3HT-based OSCs. | - |
dc.language | English | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Molecular Orientation Control of Regioisomeric Small Molecule Acceptors for High-Performance Poly(3-hexylthiophene)-based Organic Solar Cells with 9.3% Efficiency | - |
dc.type | Article | - |
dc.identifier.wosid | 001006475700001 | - |
dc.identifier.scopusid | 2-s2.0-85163167361 | - |
dc.type.rims | ART | - |
dc.citation.volume | 35 | - |
dc.citation.issue | 11 | - |
dc.citation.beginningpage | 4318 | - |
dc.citation.endingpage | 4328 | - |
dc.citation.publicationname | CHEMISTRY OF MATERIALS | - |
dc.identifier.doi | 10.1021/acs.chemmater.3c00384 | - |
dc.contributor.localauthor | Kim, Bumjoon J. | - |
dc.contributor.nonIdAuthor | Cho, Shinuk | - |
dc.contributor.nonIdAuthor | Lee, Changyeon | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | NON-FULLERENE ACCEPTOR | - |
dc.subject.keywordPlus | POLYMER | - |
dc.subject.keywordPlus | STABILITY | - |
dc.subject.keywordPlus | PHOTOVOLTAICS | - |
dc.subject.keywordPlus | MORPHOLOGY | - |
dc.subject.keywordPlus | ACHIEVE | - |
dc.subject.keywordPlus | DESIGN | - |
dc.subject.keywordPlus | FIGURE | - |
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