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권태혁

Kwon, Tae-Hyuk
Energy Recognition Lab.
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dc.citation.startPage 100180 -
dc.citation.title MATERIALS TODAY ADVANCES -
dc.citation.volume 12 -
dc.contributor.author Kim, Wang-Hyo -
dc.contributor.author Mapley, Joseph, I -
dc.contributor.author Roh, Deok-Ho -
dc.contributor.author Kim, Jeong Soo -
dc.contributor.author Yoon, So Yeon -
dc.contributor.author Gordon, Keith C. -
dc.contributor.author Kwon, Tae-Hyuk -
dc.date.accessioned 2023-12-21T14:52:41Z -
dc.date.available 2023-12-21T14:52:41Z -
dc.date.created 2021-11-22 -
dc.date.issued 2021-12 -
dc.description.abstract The charge transfer (CT) properties of photosensitizers largely determine the photovoltaic performances of dye sensitized solar cells (DSSCs). Thus, understanding the CT properties of photosensitizers is key to further improving the performances of DSSCs. We herein investigated the underlying relationship be-tween the molecular structures and CT properties of the photosensitizers using resonance Raman (RR) spectroscopy and density functional theory (DFT) calculations. RR spectroscopy combined with DFT calculations showed that the presence of a triple bond (T-D1, T-D2, and T-D3) enhanced the degree of CT from the donor to the acceptor. In addition, the presence of electron donating groups (EDGs) on the donor (T-D2 and T-D3) further increased the CT properties of the donor. Moreover, DFT analysis based on the harmonic oscillator model of aromaticity revealed that the presence of a triple bond and an EDG increased the quinoidal character of the photosensitizer in the excited state. Finally, it was found that the degree of CT properties exhibited by each photosensitizer was in good agreement with the order of the DSSC performances. (c) 2021 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). -
dc.identifier.bibliographicCitation MATERIALS TODAY ADVANCES, v.12, pp.100180 -
dc.identifier.doi 10.1016/j.mtadv.2021.100180 -
dc.identifier.issn 2590-0498 -
dc.identifier.scopusid 2-s2.0-85117812715 -
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/54863 -
dc.identifier.url https://www.sciencedirect.com/science/article/pii/S2590049821000503?via%3Dihub -
dc.identifier.wosid 000712062500006 -
dc.language 영어 -
dc.publisher ELSEVIER -
dc.title A Resonance Raman spectroscopic study on charge transfer enhancement in photosensitizers -
dc.type Article -
dc.description.isOpenAccess TRUE -
dc.relation.journalWebOfScienceCategory Materials Science, Multidisciplinary -
dc.relation.journalResearchArea Materials Science -
dc.type.docType Article -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.subject.keywordAuthor Photosensitizer -
dc.subject.keywordAuthor Charge transfer property -
dc.subject.keywordAuthor Quinoidal property -
dc.subject.keywordAuthor Resonance Raman spectroscopy -
dc.subject.keywordAuthor Density functional theory calculation -
dc.subject.keywordPlus SENSITIZED SOLAR-CELLS -
dc.subject.keywordPlus D-PI-A -
dc.subject.keywordPlus EXCITED-STATE -
dc.subject.keywordPlus ORGANIC SENSITIZERS -
dc.subject.keywordPlus MOLECULAR-GEOMETRY -
dc.subject.keywordPlus POWER-GENERATION -
dc.subject.keywordPlus EFFICIENT -
dc.subject.keywordPlus DYES -
dc.subject.keywordPlus PHOTOANODES -
dc.subject.keywordPlus ABSORPTION -

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