Chlorine-Doped Perovskite Oxide: A Platinum-Free Cathode for Dye-Sensitized Solar Cells
Triiodide/iodide (I3-/I-) redox couple-mediated solar cells, batteries, and electrochromic devices require highly efficient and stable electrocatalysts for I3- reduction reaction (IRR) to overcome performance limitations, whereas the widely used platinum (Pt) cathode for IRR has limitations of high...
| Main Authors: | , , , , , , , , , , |
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| Format: | Journal Article |
| Language: | English |
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AMER CHEMICAL SOC
2019
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| Online Access: | http://purl.org/au-research/grants/arc/DP150104365 http://hdl.handle.net/20.500.11937/91954 |
| _version_ | 1848765604538875904 |
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| author | Wang, Wei Tran, R. Qu, J. Liu, Yu Chen, C. Xu, M. Chen, Y. Ong, S.P. Wang, L. Zhou, W. Shao, Zongping |
| author_facet | Wang, Wei Tran, R. Qu, J. Liu, Yu Chen, C. Xu, M. Chen, Y. Ong, S.P. Wang, L. Zhou, W. Shao, Zongping |
| author_sort | Wang, Wei |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Triiodide/iodide (I3-/I-) redox couple-mediated solar cells, batteries, and electrochromic devices require highly efficient and stable electrocatalysts for I3- reduction reaction (IRR) to overcome performance limitations, whereas the widely used platinum (Pt) cathode for IRR has limitations of high price and unfavorable durability. In this work, we present a halogen element (chlorine) doping strategy to design low-cost perovskite-type electrocatalysts with enhanced IRR activity and stability. The dye-sensitized solar cell (DSSC) assembled by the LaFeO2.965-ÎCl0.035 cathode delivers an attractive power conversion efficiency (PCE) of 11.4% with a remarkable PCE enhancement factor of 23% compared with Pt, which is higher than most of the reported non-Pt DSSC cathodes. Attractively, LaFeO2.965-ÎCl0.035 displays superior IRR activity/stability and structural stability in the I3-/I--based electrolyte compared to pristine LaFeO3 because chlorine doping facilitates the creation of oxygen vacancies (active sites) and enhances surface acidity simultaneously. This study provides a new way for designing outstanding IRR electrocatalysts, which could be applied to many redox couple-mediated photo/electrochemical devices. |
| first_indexed | 2025-11-14T11:37:54Z |
| format | Journal Article |
| id | curtin-20.500.11937-91954 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:37:54Z |
| publishDate | 2019 |
| publisher | AMER CHEMICAL SOC |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-919542023-06-08T05:03:19Z Chlorine-Doped Perovskite Oxide: A Platinum-Free Cathode for Dye-Sensitized Solar Cells Wang, Wei Tran, R. Qu, J. Liu, Yu Chen, C. Xu, M. Chen, Y. Ong, S.P. Wang, L. Zhou, W. Shao, Zongping Science & Technology Technology Nanoscience & Nanotechnology Materials Science, Multidisciplinary Science & Technology - Other Topics Materials Science dye-sensitized solar cell perovskite oxide cathode anion doping electrocatalyst EFFICIENT COUNTER ELECTRODE REDUCTION ACTIVITY OXYGEN EVOLUTION COMPOSITE FILM PERFORMANCE CATALYSTS GRAPHENE ELECTROCATALYST MICROSPHERES MORPHOLOGY anion doping cathode dye-sensitized solar cell electrocatalyst perovskite oxide Triiodide/iodide (I3-/I-) redox couple-mediated solar cells, batteries, and electrochromic devices require highly efficient and stable electrocatalysts for I3- reduction reaction (IRR) to overcome performance limitations, whereas the widely used platinum (Pt) cathode for IRR has limitations of high price and unfavorable durability. In this work, we present a halogen element (chlorine) doping strategy to design low-cost perovskite-type electrocatalysts with enhanced IRR activity and stability. The dye-sensitized solar cell (DSSC) assembled by the LaFeO2.965-ÎCl0.035 cathode delivers an attractive power conversion efficiency (PCE) of 11.4% with a remarkable PCE enhancement factor of 23% compared with Pt, which is higher than most of the reported non-Pt DSSC cathodes. Attractively, LaFeO2.965-ÎCl0.035 displays superior IRR activity/stability and structural stability in the I3-/I--based electrolyte compared to pristine LaFeO3 because chlorine doping facilitates the creation of oxygen vacancies (active sites) and enhances surface acidity simultaneously. This study provides a new way for designing outstanding IRR electrocatalysts, which could be applied to many redox couple-mediated photo/electrochemical devices. 2019 Journal Article http://hdl.handle.net/20.500.11937/91954 10.1021/acsami.9b07966 English http://purl.org/au-research/grants/arc/DP150104365 http://purl.org/au-research/grants/arc/DP160104835 AMER CHEMICAL SOC restricted |
| spellingShingle | Science & Technology Technology Nanoscience & Nanotechnology Materials Science, Multidisciplinary Science & Technology - Other Topics Materials Science dye-sensitized solar cell perovskite oxide cathode anion doping electrocatalyst EFFICIENT COUNTER ELECTRODE REDUCTION ACTIVITY OXYGEN EVOLUTION COMPOSITE FILM PERFORMANCE CATALYSTS GRAPHENE ELECTROCATALYST MICROSPHERES MORPHOLOGY anion doping cathode dye-sensitized solar cell electrocatalyst perovskite oxide Wang, Wei Tran, R. Qu, J. Liu, Yu Chen, C. Xu, M. Chen, Y. Ong, S.P. Wang, L. Zhou, W. Shao, Zongping Chlorine-Doped Perovskite Oxide: A Platinum-Free Cathode for Dye-Sensitized Solar Cells |
| title | Chlorine-Doped Perovskite Oxide: A Platinum-Free Cathode for Dye-Sensitized Solar Cells |
| title_full | Chlorine-Doped Perovskite Oxide: A Platinum-Free Cathode for Dye-Sensitized Solar Cells |
| title_fullStr | Chlorine-Doped Perovskite Oxide: A Platinum-Free Cathode for Dye-Sensitized Solar Cells |
| title_full_unstemmed | Chlorine-Doped Perovskite Oxide: A Platinum-Free Cathode for Dye-Sensitized Solar Cells |
| title_short | Chlorine-Doped Perovskite Oxide: A Platinum-Free Cathode for Dye-Sensitized Solar Cells |
| title_sort | chlorine-doped perovskite oxide: a platinum-free cathode for dye-sensitized solar cells |
| topic | Science & Technology Technology Nanoscience & Nanotechnology Materials Science, Multidisciplinary Science & Technology - Other Topics Materials Science dye-sensitized solar cell perovskite oxide cathode anion doping electrocatalyst EFFICIENT COUNTER ELECTRODE REDUCTION ACTIVITY OXYGEN EVOLUTION COMPOSITE FILM PERFORMANCE CATALYSTS GRAPHENE ELECTROCATALYST MICROSPHERES MORPHOLOGY anion doping cathode dye-sensitized solar cell electrocatalyst perovskite oxide |
| url | http://purl.org/au-research/grants/arc/DP150104365 http://purl.org/au-research/grants/arc/DP150104365 http://hdl.handle.net/20.500.11937/91954 |