Carbon-coated three-dimensional WS2film consisting of WO3@WS2core-shell blocks and layered WS2nanostructures as counter electrodes for efficient dye-sensitized solar cells
© 2018 Elsevier Ltd The possibility of using solar energy for electricity generation has inspired intensive enthusiasm on the development of solar cell devices. This work reports the synthesis of a novel counter electrode (CE) composed of WO x @WS 2 @carbon core-shell film and compares its electrica...
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
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Pergamon
2018
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| Online Access: | http://hdl.handle.net/20.500.11937/66340 |
| _version_ | 1848761299076382720 |
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| author | Shen, Z. Wang, M. Liu, Lihong Sofianos, M. Yang, H. Wang, Shaobin Liu, Shaomin |
| author_facet | Shen, Z. Wang, M. Liu, Lihong Sofianos, M. Yang, H. Wang, Shaobin Liu, Shaomin |
| author_sort | Shen, Z. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 2018 Elsevier Ltd The possibility of using solar energy for electricity generation has inspired intensive enthusiasm on the development of solar cell devices. This work reports the synthesis of a novel counter electrode (CE) composed of WO x @WS 2 @carbon core-shell film and compares its electrical and electrocatalytic performances with other two CEs of WO x /carbon film and conventional Pt in the dye-sensitized solar cells (DSSCs). The WO x @WS 2 @carbon CE was prepared by a sulfurization treatment of a mesoporous WO x /carbon film coated on fluorine-doped tin oxide (FTO) glass. The well-interconnected three-dimensional (3D) WS 2 structure with coated carbon film provides high electrocatalytic activity and fast reaction kinetics for the reduction of triiodide to iodide due to its sufficient active sites on 3D WS 2 framework containing surface edge-oriented nanosheets and the facile electron transfer and electrolyte diffusion via the continuously carbon layer. Photovoltaic performance tests indicate the DSSC device with the counter electrode of WO x @WS 2 @carbon core-shell achieved the power conversion efficiency (PCE) of 7.71% compared favourably with the values of 6.00% from WO x /carbon CE and 7.34% from conventional Pt CE. Such results vividly mirror that the developed WO x @WS 2 @carbon core-shell can replace the conventional Pt film, realizing Pt-free counter electrodes for DSSCs. |
| first_indexed | 2025-11-14T10:29:28Z |
| format | Journal Article |
| id | curtin-20.500.11937-66340 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:29:28Z |
| publishDate | 2018 |
| publisher | Pergamon |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-663402023-08-02T06:39:11Z Carbon-coated three-dimensional WS2film consisting of WO3@WS2core-shell blocks and layered WS2nanostructures as counter electrodes for efficient dye-sensitized solar cells Shen, Z. Wang, M. Liu, Lihong Sofianos, M. Yang, H. Wang, Shaobin Liu, Shaomin © 2018 Elsevier Ltd The possibility of using solar energy for electricity generation has inspired intensive enthusiasm on the development of solar cell devices. This work reports the synthesis of a novel counter electrode (CE) composed of WO x @WS 2 @carbon core-shell film and compares its electrical and electrocatalytic performances with other two CEs of WO x /carbon film and conventional Pt in the dye-sensitized solar cells (DSSCs). The WO x @WS 2 @carbon CE was prepared by a sulfurization treatment of a mesoporous WO x /carbon film coated on fluorine-doped tin oxide (FTO) glass. The well-interconnected three-dimensional (3D) WS 2 structure with coated carbon film provides high electrocatalytic activity and fast reaction kinetics for the reduction of triiodide to iodide due to its sufficient active sites on 3D WS 2 framework containing surface edge-oriented nanosheets and the facile electron transfer and electrolyte diffusion via the continuously carbon layer. Photovoltaic performance tests indicate the DSSC device with the counter electrode of WO x @WS 2 @carbon core-shell achieved the power conversion efficiency (PCE) of 7.71% compared favourably with the values of 6.00% from WO x /carbon CE and 7.34% from conventional Pt CE. Such results vividly mirror that the developed WO x @WS 2 @carbon core-shell can replace the conventional Pt film, realizing Pt-free counter electrodes for DSSCs. 2018 Journal Article http://hdl.handle.net/20.500.11937/66340 10.1016/j.electacta.2018.02.009 Pergamon restricted |
| spellingShingle | Shen, Z. Wang, M. Liu, Lihong Sofianos, M. Yang, H. Wang, Shaobin Liu, Shaomin Carbon-coated three-dimensional WS2film consisting of WO3@WS2core-shell blocks and layered WS2nanostructures as counter electrodes for efficient dye-sensitized solar cells |
| title | Carbon-coated three-dimensional WS2film consisting of WO3@WS2core-shell blocks and layered WS2nanostructures as counter electrodes for efficient dye-sensitized solar cells |
| title_full | Carbon-coated three-dimensional WS2film consisting of WO3@WS2core-shell blocks and layered WS2nanostructures as counter electrodes for efficient dye-sensitized solar cells |
| title_fullStr | Carbon-coated three-dimensional WS2film consisting of WO3@WS2core-shell blocks and layered WS2nanostructures as counter electrodes for efficient dye-sensitized solar cells |
| title_full_unstemmed | Carbon-coated three-dimensional WS2film consisting of WO3@WS2core-shell blocks and layered WS2nanostructures as counter electrodes for efficient dye-sensitized solar cells |
| title_short | Carbon-coated three-dimensional WS2film consisting of WO3@WS2core-shell blocks and layered WS2nanostructures as counter electrodes for efficient dye-sensitized solar cells |
| title_sort | carbon-coated three-dimensional ws2film consisting of wo3@ws2core-shell blocks and layered ws2nanostructures as counter electrodes for efficient dye-sensitized solar cells |
| url | http://hdl.handle.net/20.500.11937/66340 |