| アイテムタイプ |
学術雑誌論文 = Journal Article(1) |
| 公開日 |
2024-06-14 |
| 資源タイプ |
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|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| タイトル |
|
|
タイトル |
Squaric Acid Core Substituted Unsymmetrical Squaraine Dyes for Dye-Sensitized Solar Cells: Effect of Electron Acceptors on Their Photovoltaic Performance |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| 著者 |
Pradhan, Safalmani
Kurokawa, Yuki
Shaban, Suraya
パンディ, シャム スディル
|
| 抄録 |
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|
内容記述タイプ |
Abstract |
|
内容記述 |
The design and development of sensitizing dyes possessing wide-wavelength photon harvesting encompassing visible to near-infrared (NIR) wavelength regions are unavoidable for increasing the overall efficiency of dye-sensitized solar cells (DSSCs). In this study, three far-red-sensitive squaraine sensitizers were designed computationally, synthesized, and characterized, aiming towards their suitability as a potential sensitizer for DSSCs. It has been found that the incorporation of an electron acceptor moiety in the central squaraine core brought about a red shift in the absorption maximum (λmax) and the emergence of a secondary absorption band in the blue region, thus broadening the photon-harvesting window. In addition, it also lowered the dye’s HOMO energy level enabling a facile regeneration of the photo-excited dye, which improved the photovoltaic performance of SQ-223, exhibiting a photoconversion efficiency (PCE) of 4.67%. Thereafter, to address the issue of wide-wavelength photon harvesting, DSSCs were fabricated by co-adsorbing two complementary dyes SQ-223 and D-131 in various molar ratios. The DSSC fabricated with D-131 and SQ-223 in 9:1 molar ratio displayed the best photovoltaic performance with a PCE of 5.81%, a significantly higher PCE when compared to corresponding individual dye-based DSSCs containing D-131 (3.94%) and SQ-223 (4.67%). |
|
言語 |
en |
| 書誌情報 |
en : Colorants
巻 2,
号 4,
p. 654-673,
発行日 2023-11-06
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| 出版社 |
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|
出版者 |
MDPI |
| DOI |
|
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|
識別子タイプ |
DOI |
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|
関連識別子 |
https://doi.org/10.3390/colorants2040034 |
| ISSN |
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|
収録物識別子タイプ |
EISSN |
|
収録物識別子 |
2079-6447 |
| 著作権関連情報 |
|
|
権利情報Resource |
https://creativecommons.org/licenses/by/4.0/ |
|
権利情報 |
Copyright (c) 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
squaraine dyes |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
NIR sensitization |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
wide-wavelength photon harvesting |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
quantum chemical calculations |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
dye-sensitized solar cells |
| 出版タイプ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 査読の有無 |
|
|
値 |
yes |
| 研究者情報 |
|
|
URL |
https://hyokadb02.jimu.kyutech.ac.jp/html/332_ja.html |
| 論文ID（連携） |
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|
値 |
10430701 |
| 連携ID |
|
|
値 |
12301 |
10430701.pdf (3.9 MB)
