DC Field | Value | Language |
---|---|---|
dc.contributor.author | Jeong, Inyoung | ko |
dc.contributor.author | Lee, Jaehyuk | ko |
dc.contributor.author | Joseph, K. L. Vincent | ko |
dc.contributor.author | Lee, Hyung Ik | ko |
dc.contributor.author | Kim, Jin Kon | ko |
dc.contributor.author | Yoon, Songhun | ko |
dc.contributor.author | Lee, Jinwoo | ko |
dc.date.accessioned | 2018-08-20T08:23:41Z | - |
dc.date.available | 2018-08-20T08:23:41Z | - |
dc.date.created | 2018-08-08 | - |
dc.date.created | 2018-08-08 | - |
dc.date.issued | 2014-10 | - |
dc.identifier.citation | NANO ENERGY, v.9, pp.392 - 400 | - |
dc.identifier.issn | 2211-2855 | - |
dc.identifier.uri | http://hdl.handle.net/10203/245051 | - |
dc.description.abstract | Tungsten carbide/carbon (WC/C) composite nanofibers were successfully prepared through electro-spinning followed by a one-step heat treatment using in-situ carburization. The WC/C nanofibers were applied to low-cost and platinum-free counter electrodes for dye sensitized solar cells (DSSCs), and their catalytic activities were investigated and compared to platinum (Pt) CEs for triiodide/iodide (I-3(-)/I-) as well as organic disulfide/thiolate (T-2/T-) electrolytes. When WC/C nanofibers are used as the CE catalyst in iodine electrolytes, the DSSCs exhibited a power conversion efficiency (PCE) of 7.77%, corresponding to 96% of that of Pt CEs. In the case of T-2/T- redox couples, the DSSCs based on WC/C nanofibers achieved PCE of 5.85%, which is almost twice that of Pt (3.07%). The high catalytic activities of WC/C nanofibers are attributed to synergetic effects from the combination of catalytically active WC and one-dimensional (1D) conductive carbon acting as an efficient charge transport pathway. In addition, spray-coated WC/C nanofiber CE films have a three-dimensional porous network, enhancing the permeation of the electrolyte into the CE film and the diffusion of redox couples. The electrospinning process used for the synthesis of the WC/C nanofibers is facile and scalable and is therefore promising for the commercialization of DSSCs. (C) 2014 Elsevier Ltd. All rights reserved. | - |
dc.language | English | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.subject | HIGHLY EFFICIENT | - |
dc.subject | RUTHENIUM SENSITIZERS | - |
dc.subject | REDOX ELECTROLYTE | - |
dc.subject | TITANIUM NITRIDE | - |
dc.subject | TUNGSTEN CARBIDE | - |
dc.subject | FREE CATALYSTS | - |
dc.subject | PT-FREE | - |
dc.subject | PERFORMANCE | - |
dc.subject | GRAPHENE | - |
dc.subject | NANOHYBRID | - |
dc.title | Low-cost electrospun WC/C composite nanofiber as a powerful platinum-free counter electrode for dye sensitized solar cell | - |
dc.type | Article | - |
dc.identifier.wosid | 000344632800044 | - |
dc.identifier.scopusid | 2-s2.0-84921441394 | - |
dc.type.rims | ART | - |
dc.citation.volume | 9 | - |
dc.citation.beginningpage | 392 | - |
dc.citation.endingpage | 400 | - |
dc.citation.publicationname | NANO ENERGY | - |
dc.identifier.doi | 10.1016/j.nanoen.2014.08.010 | - |
dc.contributor.localauthor | Lee, Jinwoo | - |
dc.contributor.nonIdAuthor | Jeong, Inyoung | - |
dc.contributor.nonIdAuthor | Lee, Jaehyuk | - |
dc.contributor.nonIdAuthor | Joseph, K. L. Vincent | - |
dc.contributor.nonIdAuthor | Lee, Hyung Ik | - |
dc.contributor.nonIdAuthor | Kim, Jin Kon | - |
dc.contributor.nonIdAuthor | Yoon, Songhun | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Dye sensitized solar cell | - |
dc.subject.keywordAuthor | Counter electrode | - |
dc.subject.keywordAuthor | Electrospinning | - |
dc.subject.keywordAuthor | Nanofiber | - |
dc.subject.keywordAuthor | Platinum-free | - |
dc.subject.keywordAuthor | Iodine-free | - |
dc.subject.keywordPlus | HIGHLY EFFICIENT | - |
dc.subject.keywordPlus | RUTHENIUM SENSITIZERS | - |
dc.subject.keywordPlus | REDOX ELECTROLYTE | - |
dc.subject.keywordPlus | TITANIUM NITRIDE | - |
dc.subject.keywordPlus | TUNGSTEN CARBIDE | - |
dc.subject.keywordPlus | FREE CATALYSTS | - |
dc.subject.keywordPlus | PT-FREE | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | GRAPHENE | - |
dc.subject.keywordPlus | NANOHYBRID | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.