Triarylamine-based dual-function coadsorbents with extended pi-conjugation aryl linkers for organic dye-sensitized solar cells
DC Field | Value | Language |
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dc.contributor.author | Choi, In Taek | - |
dc.contributor.author | You, Ban Seok | - |
dc.contributor.author | Eom, Yu Kyung | - |
dc.contributor.author | Ju, Myung Jong | - |
dc.contributor.author | Choi, Won Seok | - |
dc.contributor.author | Kang, Sung Ho | - |
dc.contributor.author | Kang, Min Soo | - |
dc.contributor.author | Seo, Kang Deuk | - |
dc.contributor.author | Hong, Ji Yeoun | - |
dc.contributor.author | Song, Sang Hyun | - |
dc.contributor.author | Yang, Ji-Woon | - |
dc.contributor.author | Kim, Hwan Kyu | - |
dc.date.accessioned | 2021-09-05T03:35:57Z | - |
dc.date.available | 2021-09-05T03:35:57Z | - |
dc.date.created | 2021-06-15 | - |
dc.date.issued | 2014-11 | - |
dc.identifier.issn | 1566-1199 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/96979 | - |
dc.description.abstract | Triarylamine-based dual-function coadsorbents containing a carboxylic acid acceptor linked by extended pi-conjugation aryl linkers (e.g., phenylene: HC-A3, naphthalene: HC-A4 and anthracene: HC-A5) were newly designed and synthesized. They were used as coadsorbents in organic dye-sensitized solar cells (DSSCs) based on a porphyrin dye (hexyloxy-biphenyl-ZnP-CN-COOH (HOP)). For comparison, the pi-conjugated phenyl linker (HC-A3) previously developed by our group was also used as a coadsorbent. The structural effects on the photophysical and electrochemical properties and DSSC performance were systematically investigated. As a result, the DSSCs based on HC-A4 and HC-5 displayed power conversion efficiencies (PCEs) of 8.2% and 5.1%, respectively, while the HC-A3-based DSSC achieved a PCE of 7.7%. In the case of HC-A4, both the short-circuit photocurrent densities (J(sc)) and open-circuit voltages (V-oc) of DSSCs were simultaneously improved to a large extent due to the more effective prevention of pi-pi stacking of organic dye molecules and the better light-harvesting effect at short wavelengths. The HC-A5-based DSSC exhibited a much lower short-circuit current (J(sc)) and open-circuit voltages (V-oc) compared to the HC-A4-based DSSC, due to the fact that the dihedral angle of the pi-conjugated linkers was too high for electron injection into the TiO2 conduction band (CB) level. This had a reduced effect on preventing the pi-pi stacking of dye molecules, resulting in lower J(sc) and V-oc values. (C) 2014 Elsevier B.V. All rights reserved. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER | - |
dc.subject | POWER-CONVERSION EFFICIENCY | - |
dc.subject | NANOCRYSTALLINE TIO2 FILMS | - |
dc.subject | CO-SENSITIZATION | - |
dc.subject | ARTIFICIAL PHOTOSYNTHESIS | - |
dc.subject | ELECTRON-TRANSFER | - |
dc.subject | IR SENSITIZATION | - |
dc.subject | PORPHYRIN DYES | - |
dc.subject | COUMARIN-DYE | - |
dc.subject | RECOMBINATION | - |
dc.subject | PERFORMANCE | - |
dc.title | Triarylamine-based dual-function coadsorbents with extended pi-conjugation aryl linkers for organic dye-sensitized solar cells | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Yang, Ji-Woon | - |
dc.contributor.affiliatedAuthor | Kim, Hwan Kyu | - |
dc.identifier.doi | 10.1016/j.orgel.2014.09.008 | - |
dc.identifier.scopusid | 2-s2.0-84908053716 | - |
dc.identifier.wosid | 000344424500086 | - |
dc.identifier.bibliographicCitation | ORGANIC ELECTRONICS, v.15, no.11, pp.3316 - 3326 | - |
dc.relation.isPartOf | ORGANIC ELECTRONICS | - |
dc.citation.title | ORGANIC ELECTRONICS | - |
dc.citation.volume | 15 | - |
dc.citation.number | 11 | - |
dc.citation.startPage | 3316 | - |
dc.citation.endPage | 3326 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.subject.keywordPlus | POWER-CONVERSION EFFICIENCY | - |
dc.subject.keywordPlus | NANOCRYSTALLINE TIO2 FILMS | - |
dc.subject.keywordPlus | CO-SENSITIZATION | - |
dc.subject.keywordPlus | ARTIFICIAL PHOTOSYNTHESIS | - |
dc.subject.keywordPlus | ELECTRON-TRANSFER | - |
dc.subject.keywordPlus | IR SENSITIZATION | - |
dc.subject.keywordPlus | PORPHYRIN DYES | - |
dc.subject.keywordPlus | COUMARIN-DYE | - |
dc.subject.keywordPlus | RECOMBINATION | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordAuthor | Dual-function coadsorbents | - |
dc.subject.keywordAuthor | Extended pi-conjugation aryl linkers | - |
dc.subject.keywordAuthor | Prevention of dye aggregation | - |
dc.subject.keywordAuthor | Light-harvesting | - |
dc.subject.keywordAuthor | Dye-sensitized solar cells | - |
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