Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 김동하 | * |
dc.date.accessioned | 2016-08-29T12:08:49Z | - |
dc.date.available | 2016-08-29T12:08:49Z | - |
dc.date.issued | 2016 | * |
dc.identifier.issn | 1944-8244 | * |
dc.identifier.other | OAK-18672 | * |
dc.identifier.uri | https://dspace.ewha.ac.kr/handle/2015.oak/231570 | - |
dc.description.abstract | Low cost, charged, and large scale graphene multilayers fabricated from nitrogen-doped reduced graphene oxide N-rGO(+), nitrogen and sulfur codoped reduced graphene oxide NS-rGO(+), and undoped reduced graphene oxide rGO(-) were applied as alternative counter electrodes in dye-sensitized solar cells (DSSCs). The neat rGO-based counter electrodes were developed via two types of layer-by-layer (LBL) self-assembly (SA) methods: spin coating and spray coating methods. In the spin coating method, two sets of multilayer films were fabricated on poly(diallyldimethylammonium chloride) (PDDA)-coated fluorine-doped tin oxide (FTO) substrates using GO(-) combined with N-GO(+) followed by annealing and denoted as [rGO(-)/N-rGO(+)]n or with NS-GO(+) and denoted as [rGO(-)/NS-rGO(+)]n for counter electrodes in DSSCs. The DSSCs employing new types of counter electrodes exhibited ∼7.0% and ∼6.2% power conversion efficiency (PCE) based on ten bilayers of [rGO(-)/N-rGO(+)]10 and [rGO(-)/NS-rGO(+)]10, respectively. The DSSCs equipped with a blend of one bilayer of [rGO(-):N-rGO(+)] and [rGO(-):NS-rGO(+)] on PDDA-coated FTO substrates were prepared from a spray coating and showed ∼6.4% and ∼5.6% PCE, respectively. Thus, it was demonstrated that a combination of undoped, nitrogen-doped, and nitrogen and sulfur codoped reduced graphene oxides can be considered as potentially powerful Pt-free electrocatalysts and alternative electrodes in conventional photovoltaic devices. © 2016 American Chemical Society. | * |
dc.language | English | * |
dc.publisher | American Chemical Society | * |
dc.subject | counter electrode | * |
dc.subject | DSSCs | * |
dc.subject | electrocatalyst | * |
dc.subject | layer-by-layer self-assembly | * |
dc.subject | nitrogen and sulfur codoped reduced graphene oxide | * |
dc.subject | nitrogen-doped reduced graphene oxide | * |
dc.title | Layer-by-Layer Self-Assembled Graphene Multilayers as Pt-Free Alternative Counter Electrodes in Dye-Sensitized Solar Cells | * |
dc.type | Article | * |
dc.relation.issue | 18 | * |
dc.relation.volume | 8 | * |
dc.relation.index | SCIE | * |
dc.relation.index | SCOPUS | * |
dc.relation.startpage | 11488 | * |
dc.relation.lastpage | 11498 | * |
dc.relation.journaltitle | ACS Applied Materials and Interfaces | * |
dc.identifier.doi | 10.1021/acsami.6b01770 | * |
dc.identifier.wosid | WOS:000375521000035 | * |
dc.identifier.scopusid | 2-s2.0-84974555902 | * |
dc.author.google | Rani A. | * |
dc.author.google | Chung K. | * |
dc.author.google | Kwon J. | * |
dc.author.google | Kim S.J. | * |
dc.author.google | Jang Y.H. | * |
dc.author.google | Jang Y.J. | * |
dc.author.google | Quan L.N. | * |
dc.author.google | Yoon M. | * |
dc.author.google | Park J.H. | * |
dc.author.google | Kim D.H. | * |
dc.contributor.scopusid | 김동하(26039227400) | * |
dc.date.modifydate | 20240123104500 | * |