dc.contributor.author | GOUNKO, IOURI | en |
dc.contributor.author | KHAN, UMAR | en |
dc.date.accessioned | 2013-09-02T13:59:40Z | |
dc.date.available | 2013-09-02T13:59:40Z | |
dc.date.issued | 2011 | en |
dc.date.submitted | 2011 | en |
dc.identifier.citation | Ahmad, I., Khan, U., Gun'ko, Y.K., Graphene, carbon nanotube and ionic liquid mixtures: Towards new quasi-solid state electrolytes for dye sensitised solar cells, Journal of Materials Chemistry, 21, 42, 2011, 16990-16996 | en |
dc.identifier.other | Y | en |
dc.identifier.uri | http://hdl.handle.net/2262/67306 | |
dc.description | PUBLISHED | en |
dc.description.abstract | In this work carbon based nanomaterials in ionic liquids have been studied as potential electrolytes for dye sensitised solar cells (DSSCs). Graphene, single wall carbon nanotubes (SWCNTs) and a mixture of graphene and SWCNTs were incorporated into 1-methyl-3-propylimidazolium iodide (PMII) ionic liquid. The resulting quasi-solid state electrolytes were sandwiched between TiO 2 working electrodes and platinum counter electrodes and subsequent DSSCs were fabricated. Graphene based quasi-solid state electrolytes displayed an increase of light conversion efficiencies in the completed DSSC from 0.16% (for pure PMII) to 2.10%. For SWCNTs, the observed light conversion efficiency increased from 0.16% to 1.43% and for the mixture of graphene and SWCNTs the light conversion efficiency improved from 0.16% to 2.50%. This significant increase occurred because the carbon materials serve simultaneously both as charge transporter in the ionic liquids and as catalyst for the electrochemical reduction of I 3 -. It is also expected that there is an ionic liquid mediated self-organisation of graphene and SWNT nanomaterials into structured networks, which provide an efficient electron transfer. Thermogravimetric analysis (TGA) studies showed that these electrolytes are stable up to 300 ?C. | en |
dc.description.sponsorship | We thank IRCSET, SFI and Solarprint Ltd for financial
support | en |
dc.format.extent | 16990-16996 | en |
dc.language.iso | en | en |
dc.relation.ispartofseries | Journal of Materials Chemistry | en |
dc.relation.ispartofseries | 21 | en |
dc.relation.ispartofseries | 42 | en |
dc.rights | Y | en |
dc.subject | 1-methyl-3-propylimidazolium iodide; Carbon material; Carbon-based; Dye-sensitised solar cells; Electrochemical reductions; Electron transfer; Light conversion; Liquid mixture; Platinum counter electrodes; Quasi-solid state; Self-organisation; Single-wall carbon nanotubes; Structured networks; TiO; Working electrode | en |
dc.subject.lcsh | 1-methyl-3-propylimidazolium iodide; Carbon material; Carbon-based; Dye-sensitised solar cells; Electrochemical reductions; Electron transfer; Light conversion; Liquid mixture; Platinum counter electrodes; Quasi-solid state; Self-organisation; Single-wall carbon nanotubes; Structured networks; TiO; Working electrode | en |
dc.title | Graphene, carbon nanotube and ionic liquid mixtures: Towards new quasi-solid state electrolytes for dye sensitised solar cells | en |
dc.type | Journal Article | en |
dc.type.supercollection | scholarly_publications | en |
dc.type.supercollection | refereed_publications | en |
dc.identifier.peoplefinderurl | http://people.tcd.ie/igounko | en |
dc.identifier.peoplefinderurl | http://people.tcd.ie/ukhan | en |
dc.identifier.rssinternalid | 87402 | en |
dc.identifier.doi | http://dx.doi.org/10.1039/c1jm11537e | en |
dc.contributor.sponsor | Science Foundation Ireland (SFI) | en |