Formation of double-layered TiO2 structures with selectively-positioned molecular dyes for efficient flexible dye-sensitized solar cells
DC Field | Value | Language |
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dc.contributor.author | Kim, Eun Yi | - |
dc.contributor.author | Yu, Sora | - |
dc.contributor.author | Moon, Jeong Hoon | - |
dc.contributor.author | Yoo, Seon Mi | - |
dc.contributor.author | Kim, Chulhee | - |
dc.contributor.author | Kim, Hwan Kyu | - |
dc.contributor.author | Lee, Wan In | - |
dc.date.accessioned | 2021-09-05T18:50:39Z | - |
dc.date.available | 2021-09-05T18:50:39Z | - |
dc.date.created | 2021-06-15 | - |
dc.date.issued | 2013-11-30 | - |
dc.identifier.issn | 0013-4686 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/101549 | - |
dc.description.abstract | To fabricate flexible dye-sensitized solar cells (DSCs) utilizing full solar spectrum, the double-layered TiO2 films, selectively loading two different dyes in discrete layers, were formed on a plastic substrate by transferring the high-temperature-processed N719/TiO2 over an organic dye (TA-St-CA)-sensitized TiO2 film by a typical compression process at room temperature. It was found that interface control between two TiO2 layers is crucial for the efficient transport of photo-injected electrons from the N719/TiO2 to the TA-St-CA/TiO2 layer. Electron impedance spectra (EIS) and transient photoelectron spectroscopic analyses exhibited that introduction of a thin interfacial TiO2 layer between the two TiO2 layers remarkably decreased the resistance at the interface, while increasing the electron diffusion constant (Do) by 10 times. As a result, the photovoltaic conversion efficiency (eta) of the flexible tandem DSC was 6.64%, whereas that of the flexible cell derived from the single TA-St-CA/TiO2 layer was only 2.98%. Another organic dye (HC-acid), absorbing a short wavelength region of solar spectrum, was also applied to fabricate flexible tandem DSC. The 77 of the cell derived from the HC-acid/TiO2 layer was only 2.91%, but that of the tandem cell obtained by transferring the high-temperature-processed N719/TiO2 was 6.86%. (C) 2013 Elsevier Ltd. All rights reserved. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.subject | LOW-TEMPERATURE FABRICATION | - |
dc.subject | ELECTRON-TRANSPORT | - |
dc.subject | LOW-COST | - |
dc.subject | IMPROVEMENT | - |
dc.subject | FILMS | - |
dc.subject | PHOTOELECTRODES | - |
dc.title | Formation of double-layered TiO2 structures with selectively-positioned molecular dyes for efficient flexible dye-sensitized solar cells | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Hwan Kyu | - |
dc.identifier.doi | 10.1016/j.electacta.2013.08.081 | - |
dc.identifier.scopusid | 2-s2.0-84883172929 | - |
dc.identifier.wosid | 000329531100036 | - |
dc.identifier.bibliographicCitation | ELECTROCHIMICA ACTA, v.111, pp.261 - 267 | - |
dc.relation.isPartOf | ELECTROCHIMICA ACTA | - |
dc.citation.title | ELECTROCHIMICA ACTA | - |
dc.citation.volume | 111 | - |
dc.citation.startPage | 261 | - |
dc.citation.endPage | 267 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Electrochemistry | - |
dc.relation.journalWebOfScienceCategory | Electrochemistry | - |
dc.subject.keywordPlus | LOW-TEMPERATURE FABRICATION | - |
dc.subject.keywordPlus | ELECTRON-TRANSPORT | - |
dc.subject.keywordPlus | LOW-COST | - |
dc.subject.keywordPlus | IMPROVEMENT | - |
dc.subject.keywordPlus | FILMS | - |
dc.subject.keywordPlus | PHOTOELECTRODES | - |
dc.subject.keywordAuthor | Dye-sensitized solar cell | - |
dc.subject.keywordAuthor | Flexible | - |
dc.subject.keywordAuthor | Tandem | - |
dc.subject.keywordAuthor | Double-layered TiO2 | - |
dc.subject.keywordAuthor | Interfacial layer | - |
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