Thieno[3,2-b][1]benzothiophene Derivative as a New pi-Bridge Unit in D-pi-A Structural Organic Sensitizers with Over 10.47% Efficiency for Dye-Sensitized Solar Cells
DC Field | Value | Language |
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dc.contributor.author | Eom, Yu Kyung | - |
dc.contributor.author | Choi, In Taek | - |
dc.contributor.author | Kang, Sung Ho | - |
dc.contributor.author | Lee, Joori | - |
dc.contributor.author | Kim, Jeongho | - |
dc.contributor.author | Ju, Myung Jong | - |
dc.contributor.author | Kim, Hwan Kyu | - |
dc.date.accessioned | 2021-09-04T13:33:28Z | - |
dc.date.available | 2021-09-04T13:33:28Z | - |
dc.date.created | 2021-06-18 | - |
dc.date.issued | 2015-08-05 | - |
dc.identifier.issn | 1614-6832 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/92778 | - |
dc.description.abstract | Three new thieno[3,2-b][1]benzothiophene (TBT)-based donor-pi-acceptor (D-pi-A) sensitizers, coded as SGT-121, SGT-129, and SGT-130, have been designed and synthesized for dye-sensitized solar cells (DSSCs), for the first time. The TBT, prepared by fusing thiophene unit with the phenyl unit of triphenylamine donor, is utilized as the pi-bridge for all sensitizers with good planarity. They have been molecularly engineered to regulate the highest occupied molecular orbital (HOMO)-lowest unoccupied molecular orbital (LUMO) energy levels and extend absorption range as well as to control the electron-transfer process that can ensure efficient dye regeneration and prevent undesired electron recombination. The photovoltaic performance of SGT-sensitizer-based DSSCs employing Co(bpy)(3)(2+/3+) (bpy = 2,2-bipyridine) redox couple is systematically evaluated in a thorough comparison with Y123 as a reference sensitizer. Among them, SGT-130 with benzothiadiazole-phenyl (BTD-P) unit as an auxiliary acceptor exhibits the highest power-conversion efficiency (PCE) of 10.47% with J(sc) = 16.77 mA cm(-2), V-oc = 851 mV, and FF = 73.34%, whose PCE is much higher than that of Y123 (9.5%). It is demonstrated that the molecular combination of each fragment in D-pi-A organic sensitizers can be a pivotal factor for achieving the higher PCEs and an innovative strategy for strengthening the drawbacks of the pi-bridge. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.subject | BAND-GAP CHROMOPHORES | - |
dc.subject | OPEN-CIRCUIT VOLTAGE | - |
dc.subject | METAL-FREE CATHODES | - |
dc.subject | GRAPHENE NANOPLATELETS | - |
dc.subject | CHARGE RECOMBINATION | - |
dc.subject | PORPHYRIN DYES | - |
dc.subject | DONOR | - |
dc.subject | MOIETY | - |
dc.subject | PERFORMANCE | - |
dc.subject | CONVERSION | - |
dc.title | Thieno[3,2-b][1]benzothiophene Derivative as a New pi-Bridge Unit in D-pi-A Structural Organic Sensitizers with Over 10.47% Efficiency for Dye-Sensitized Solar Cells | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Hwan Kyu | - |
dc.identifier.doi | 10.1002/aenm.201500300 | - |
dc.identifier.scopusid | 2-s2.0-84938747453 | - |
dc.identifier.wosid | 000359374900002 | - |
dc.identifier.bibliographicCitation | ADVANCED ENERGY MATERIALS, v.5, no.15 | - |
dc.relation.isPartOf | ADVANCED ENERGY MATERIALS | - |
dc.citation.title | ADVANCED ENERGY MATERIALS | - |
dc.citation.volume | 5 | - |
dc.citation.number | 15 | - |
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 | Energy & Fuels | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Energy & Fuels | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.subject.keywordPlus | BAND-GAP CHROMOPHORES | - |
dc.subject.keywordPlus | OPEN-CIRCUIT VOLTAGE | - |
dc.subject.keywordPlus | METAL-FREE CATHODES | - |
dc.subject.keywordPlus | GRAPHENE NANOPLATELETS | - |
dc.subject.keywordPlus | CHARGE RECOMBINATION | - |
dc.subject.keywordPlus | PORPHYRIN DYES | - |
dc.subject.keywordPlus | DONOR | - |
dc.subject.keywordPlus | MOIETY | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | CONVERSION | - |
dc.subject.keywordAuthor | cobalt redox couple | - |
dc.subject.keywordAuthor | dye-sensitized solar cells | - |
dc.subject.keywordAuthor | fused-ring building block | - |
dc.subject.keywordAuthor | metal-free organic sensitizers | - |
dc.subject.keywordAuthor | -bridge unit | - |
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