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dc.contributor.authorShen, Z.
dc.contributor.authorWang, M.
dc.contributor.authorLiu, Lihong
dc.contributor.authorSofianos, M.
dc.contributor.authorYang, H.
dc.contributor.authorWang, Shaobin
dc.contributor.authorLiu, Shaomin
dc.date.accessioned2018-04-30T02:40:10Z
dc.date.available2018-04-30T02:40:10Z
dc.date.created2018-04-16T07:41:29Z
dc.date.issued2018
dc.identifier.citationShen, Z. and Wang, M. and Liu, L. and Sofianos, M. and Yang, H. and Wang, S. and Liu, S. 2018. Carbon-coated three-dimensional WS2film consisting of WO3@WS2core-shell blocks and layered WS2nanostructures as counter electrodes for efficient dye-sensitized solar cells. Electrochimica Acta. 266: pp. 130-138.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/66340
dc.identifier.doi10.1016/j.electacta.2018.02.009
dc.description.abstract

© 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.

dc.publisherPergamon
dc.titleCarbon-coated three-dimensional WS2film consisting of WO3@WS2core-shell blocks and layered WS2nanostructures as counter electrodes for efficient dye-sensitized solar cells
dc.typeJournal Article
dcterms.source.volume266
dcterms.source.startPage130
dcterms.source.endPage138
dcterms.source.issn0013-4686
dcterms.source.titleElectrochimica Acta
curtin.departmentDepartment of Chemical Engineering
curtin.accessStatusFulltext not available


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