3D Structural Optimization of Zinc Phthalocyanine-Based Sensitizers for Enhancement of Open-Circuit Voltage of Dye-Sensitized Solar Cells
We designed and synthesized two zinc phthalocyanine sensitizers (<b>PcS27</b> and <b>PcS28</b>), substituted with branched or cyclic alkoxy chains, to investigate the structural effect of peripheral alkyl chains on the performance of dye-sensitized TiO<sub>2</sub>...
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MDPI AG
2020-05-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/13/9/2288 |
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| author | Takuro Ikeuchi Ryota Kudo Yu Kitazawa Shogo Mori Mutsumi Kimura |
| author_facet | Takuro Ikeuchi Ryota Kudo Yu Kitazawa Shogo Mori Mutsumi Kimura |
| author_sort | Takuro Ikeuchi |
| collection | DOAJ |
| description | We designed and synthesized two zinc phthalocyanine sensitizers (<b>PcS27</b> and <b>PcS28</b>), substituted with branched or cyclic alkoxy chains, to investigate the structural effect of peripheral alkyl chains on the performance of dye-sensitized TiO<sub>2</sub> solar cells. The bulky cyclic alkyl chains of <b>PcS28</b> decreased the adsorption density of <b>PcS28</b> on the TiO<sub>2</sub> electrode, while the terminal branches of alkoxy chains of <b>PcS27</b> did not influence the adsorption density in comparison to the previously published <b>PcS20</b> with linear alkoxy chains. Under one sun conditions, <b>PcS27</b> cells exhibited higher open-circuit voltage but a slightly lower energy conversion efficiency, 6.0% less than <b>PcS20</b>. These results suggest that the small alternation of alkoxy chains resulted in decreasing electron pushing ability of peripheral phenoxy units, giving lower short-circuit current. |
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| format | Article |
| id | doaj.art-676c553af30b4985a80fc7aa6e49d9f7 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T20:01:17Z |
| publishDate | 2020-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-676c553af30b4985a80fc7aa6e49d9f72023-11-19T23:33:07ZengMDPI AGEnergies1996-10732020-05-01139228810.3390/en130922883D Structural Optimization of Zinc Phthalocyanine-Based Sensitizers for Enhancement of Open-Circuit Voltage of Dye-Sensitized Solar CellsTakuro Ikeuchi0Ryota Kudo1Yu Kitazawa2Shogo Mori3Mutsumi Kimura4Department of Chemistry and Materials, Faculty of Textile Science and Technology, Shinshu University, Ueda 386-8567, JapanDepartment of Chemistry and Materials, Faculty of Textile Science and Technology, Shinshu University, Ueda 386-8567, JapanResearch Initiative for Supra-Materials (RISM), Interdisciplinary Cluster for Cutting Edge Research (ICCER), Shinshu University, Ueda 386-8567, JapanDepartment of Chemistry and Materials, Faculty of Textile Science and Technology, Shinshu University, Ueda 386-8567, JapanDepartment of Chemistry and Materials, Faculty of Textile Science and Technology, Shinshu University, Ueda 386-8567, JapanWe designed and synthesized two zinc phthalocyanine sensitizers (<b>PcS27</b> and <b>PcS28</b>), substituted with branched or cyclic alkoxy chains, to investigate the structural effect of peripheral alkyl chains on the performance of dye-sensitized TiO<sub>2</sub> solar cells. The bulky cyclic alkyl chains of <b>PcS28</b> decreased the adsorption density of <b>PcS28</b> on the TiO<sub>2</sub> electrode, while the terminal branches of alkoxy chains of <b>PcS27</b> did not influence the adsorption density in comparison to the previously published <b>PcS20</b> with linear alkoxy chains. Under one sun conditions, <b>PcS27</b> cells exhibited higher open-circuit voltage but a slightly lower energy conversion efficiency, 6.0% less than <b>PcS20</b>. These results suggest that the small alternation of alkoxy chains resulted in decreasing electron pushing ability of peripheral phenoxy units, giving lower short-circuit current.https://www.mdpi.com/1996-1073/13/9/2288dye-sensitized solar cellphthalocyanineopen-circuit voltagebranched alkyl chain |
| spellingShingle | Takuro Ikeuchi Ryota Kudo Yu Kitazawa Shogo Mori Mutsumi Kimura 3D Structural Optimization of Zinc Phthalocyanine-Based Sensitizers for Enhancement of Open-Circuit Voltage of Dye-Sensitized Solar Cells Energies dye-sensitized solar cell phthalocyanine open-circuit voltage branched alkyl chain |
| title | 3D Structural Optimization of Zinc Phthalocyanine-Based Sensitizers for Enhancement of Open-Circuit Voltage of Dye-Sensitized Solar Cells |
| title_full | 3D Structural Optimization of Zinc Phthalocyanine-Based Sensitizers for Enhancement of Open-Circuit Voltage of Dye-Sensitized Solar Cells |
| title_fullStr | 3D Structural Optimization of Zinc Phthalocyanine-Based Sensitizers for Enhancement of Open-Circuit Voltage of Dye-Sensitized Solar Cells |
| title_full_unstemmed | 3D Structural Optimization of Zinc Phthalocyanine-Based Sensitizers for Enhancement of Open-Circuit Voltage of Dye-Sensitized Solar Cells |
| title_short | 3D Structural Optimization of Zinc Phthalocyanine-Based Sensitizers for Enhancement of Open-Circuit Voltage of Dye-Sensitized Solar Cells |
| title_sort | 3d structural optimization of zinc phthalocyanine based sensitizers for enhancement of open circuit voltage of dye sensitized solar cells |
| topic | dye-sensitized solar cell phthalocyanine open-circuit voltage branched alkyl chain |
| url | https://www.mdpi.com/1996-1073/13/9/2288 |
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