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DC Field | Value | Language |
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dc.citation.endPage | 8198 | - |
dc.citation.number | 6 | - |
dc.citation.startPage | 8191 | - |
dc.citation.title | ACS APPLIED MATERIALS & INTERFACES | - |
dc.citation.volume | 14 | - |
dc.contributor.author | Sekar, Arvindh | - |
dc.contributor.author | Moreno-Naranjo, Juan Manuel | - |
dc.contributor.author | Liu, Yongpeng | - |
dc.contributor.author | Yum, Jun-Ho | - |
dc.contributor.author | Darwich, Barbara Primera | - |
dc.contributor.author | Cho, Han-Hee | - |
dc.contributor.author | Guijarro, Nestor | - |
dc.contributor.author | Yao, Liang | - |
dc.contributor.author | Sivula, Kevin | - |
dc.date.accessioned | 2023-12-21T14:38:18Z | - |
dc.date.available | 2023-12-21T14:38:18Z | - |
dc.date.created | 2022-03-03 | - |
dc.date.issued | 2022-02 | - |
dc.description.abstract | The use of a bulk heterojunction of organic semiconductors to drive photoelectrochemical water splitting is an emerging trend; however, the optimum energy levels of the donor and acceptor have not been established for photoanode operation with respect to electrolyte pH. Herein, we prepare a set of donor polymers and non-fullerene acceptors with varying energy levels to probe the effect of photogenerated electron injection into a SnO2-based substrate under sacrificial photo-oxidation conditions. Photocurrent density (for sacrificial oxidation) up to 4.1 mA cm–2 was observed at 1.23 V vs reversible hydrogen electrode in optimized photoanodes. Moreover, we establish that a lower-lying donor polymer leads to improved performance due to both improved exciton separation and better charge collection. Similarly, lower-lying acceptors also give photoanodes with higher photocurrent density but with a later photocurrent onset potential and a narrower range of pH for good operation due to the Nernstian behavior of the SnO2, which leads to a smaller driving force for electron injection at high pH. | - |
dc.identifier.bibliographicCitation | ACS APPLIED MATERIALS & INTERFACES, v.14, no.6, pp.8191 - 8198 | - |
dc.identifier.doi | 10.1021/acsami.1c21440 | - |
dc.identifier.issn | 1944-8244 | - |
dc.identifier.scopusid | 2-s2.0-85124798214 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/57308 | - |
dc.identifier.wosid | 000758053600001 | - |
dc.language | 영어 | - |
dc.publisher | American Chemical Society | - |
dc.title | Bulk Heterojunction Organic Semiconductor Photoanodes: Tuning Energy Levels to Optimize Electron Injection | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | benzodithiophene | - |
dc.subject.keywordAuthor | photoelectrochemistry | - |
dc.subject.keywordAuthor | polymer | - |
dc.subject.keywordAuthor | rylene diimide | - |
dc.subject.keywordAuthor | thiophenedicarboximide | - |
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