Effects of Central Metal Ions in Porphyrin-sensitized Solar Cells with Halogen Redox Mediators
Effects of central metal ions in porphyrin-sensitized solar cells were investigated by using 5-(4-carboxyphenyl)-10,15,20-tris(2,4,6-trimethylphenyl)porphyrins as sensitizers and I−/I3− or Br−/Br3− as redox mediators. Zn(II), Cu(II), Pd(II), and free-base porphyrins were synthesized, and the propert...
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| Format: | Article |
| Language: | English |
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The Electrochemical Society of Japan
2023-09-01
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| Series: | Electrochemistry |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/electrochemistry/91/9/91_23-00060/_html/-char/en |
| _version_ | 1797671483574583296 |
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| author | Fumiyasu AWAI Yonbon ARAI Jotaro NAKAZAKI Satoshi UCHIDA Hiroshi SEGAWA |
| author_facet | Fumiyasu AWAI Yonbon ARAI Jotaro NAKAZAKI Satoshi UCHIDA Hiroshi SEGAWA |
| author_sort | Fumiyasu AWAI |
| collection | DOAJ |
| description | Effects of central metal ions in porphyrin-sensitized solar cells were investigated by using 5-(4-carboxyphenyl)-10,15,20-tris(2,4,6-trimethylphenyl)porphyrins as sensitizers and I−/I3− or Br−/Br3− as redox mediators. Zn(II), Cu(II), Pd(II), and free-base porphyrins were synthesized, and the properties of them and the photovoltaic performances of the dye-sensitized solar cells (DSSCs) using them are compared. The electron injection processes from the dyes into TiO2 were investigated by changing Li+ concentration in the electrolytes. The regeneration processes of the dyes were examined by comparing the electrolytes with different redox potentials (I−/I3− or Br−/Br3−). With the Br−/Br3− redox mediator, palladium porphyrin yielded both higher short-circuit current density (Jsc) and open-circuit voltage (Voc) than that with the I−/I3− mediator and achieved the highest power conversion efficiency among all combinations in this study. |
| first_indexed | 2024-03-11T21:16:11Z |
| format | Article |
| id | doaj.art-a80dfd3b2d7b4dad8a3380dc840dbc97 |
| institution | Directory Open Access Journal |
| issn | 2186-2451 |
| language | English |
| last_indexed | 2024-03-11T21:16:11Z |
| publishDate | 2023-09-01 |
| publisher | The Electrochemical Society of Japan |
| record_format | Article |
| series | Electrochemistry |
| spelling | doaj.art-a80dfd3b2d7b4dad8a3380dc840dbc972023-09-29T01:36:58ZengThe Electrochemical Society of JapanElectrochemistry2186-24512023-09-0191909700109700110.5796/electrochemistry.23-00060electrochemistryEffects of Central Metal Ions in Porphyrin-sensitized Solar Cells with Halogen Redox MediatorsFumiyasu AWAI0https://orcid.org/0000-0001-5091-4693Yonbon ARAI1Jotaro NAKAZAKI2https://orcid.org/0000-0002-2528-616XSatoshi UCHIDA3https://orcid.org/0000-0002-4971-574XHiroshi SEGAWA4https://orcid.org/0000-0001-8076-9722Research Center for Advanced Science and Technology, The University of TokyoResearch Center for Advanced Science and Technology, The University of TokyoResearch Center for Advanced Science and Technology, The University of TokyoResearch Center for Advanced Science and Technology, The University of TokyoResearch Center for Advanced Science and Technology, The University of TokyoEffects of central metal ions in porphyrin-sensitized solar cells were investigated by using 5-(4-carboxyphenyl)-10,15,20-tris(2,4,6-trimethylphenyl)porphyrins as sensitizers and I−/I3− or Br−/Br3− as redox mediators. Zn(II), Cu(II), Pd(II), and free-base porphyrins were synthesized, and the properties of them and the photovoltaic performances of the dye-sensitized solar cells (DSSCs) using them are compared. The electron injection processes from the dyes into TiO2 were investigated by changing Li+ concentration in the electrolytes. The regeneration processes of the dyes were examined by comparing the electrolytes with different redox potentials (I−/I3− or Br−/Br3−). With the Br−/Br3− redox mediator, palladium porphyrin yielded both higher short-circuit current density (Jsc) and open-circuit voltage (Voc) than that with the I−/I3− mediator and achieved the highest power conversion efficiency among all combinations in this study.https://www.jstage.jst.go.jp/article/electrochemistry/91/9/91_23-00060/_html/-char/endye-sensitized solar cellsredox mediatorsporphyrins |
| spellingShingle | Fumiyasu AWAI Yonbon ARAI Jotaro NAKAZAKI Satoshi UCHIDA Hiroshi SEGAWA Effects of Central Metal Ions in Porphyrin-sensitized Solar Cells with Halogen Redox Mediators Electrochemistry dye-sensitized solar cells redox mediators porphyrins |
| title | Effects of Central Metal Ions in Porphyrin-sensitized Solar Cells with Halogen Redox Mediators |
| title_full | Effects of Central Metal Ions in Porphyrin-sensitized Solar Cells with Halogen Redox Mediators |
| title_fullStr | Effects of Central Metal Ions in Porphyrin-sensitized Solar Cells with Halogen Redox Mediators |
| title_full_unstemmed | Effects of Central Metal Ions in Porphyrin-sensitized Solar Cells with Halogen Redox Mediators |
| title_short | Effects of Central Metal Ions in Porphyrin-sensitized Solar Cells with Halogen Redox Mediators |
| title_sort | effects of central metal ions in porphyrin sensitized solar cells with halogen redox mediators |
| topic | dye-sensitized solar cells redox mediators porphyrins |
| url | https://www.jstage.jst.go.jp/article/electrochemistry/91/9/91_23-00060/_html/-char/en |
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