Show simple item record

dc.contributor.authorYu, Hua
dc.contributor.authorXue, Bofei
dc.contributor.authorLiu, Porun
dc.contributor.authorQiu, Jingxia
dc.contributor.authorWen, William
dc.contributor.authorZhang, Shanqing
dc.contributor.authorZhao, Huijun
dc.date.accessioned2017-05-03T11:43:08Z
dc.date.available2017-05-03T11:43:08Z
dc.date.issued2012
dc.date.modified2013-06-16T23:53:09Z
dc.identifier.issn1944-8244
dc.identifier.doi10.1021/am2015553
dc.identifier.urihttp://hdl.handle.net/10072/48530
dc.description.abstractAn organic lanthanum solution was prepared and used for modifying the nanoporous TiO2 photoanode for dye-sensitized solar cells (DSSCs). The preliminary characterization results demonstrate that La2O3 was formed on the surface of the TiO2 photoanodes. The X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) analyses suggest that La3+ was introduced into the TiO2 nanocrystalline, while, the scanning electron microscopy (SEM) and tunnelling electron microscopy (TEM) characterizations suggest that a thin La2O3 layer forms on surface of the TiO2 nanostructure. The La2O3 layer is able to alleviate the electron recombination as a passivation layer. Though the slight decrease in surface areas were induced by the surface modification, the dye loading were maintained, which can be attributed to the formation of strong coordination bonding between the dye molecules and the lanthanide. The bonding can also facilitate the electron transfer between the dye molecules and TiO2 conduction band. Consequently, the open circuit potential and short circuit current were boosted significantly and the overall energy conversion efficiency of the DSSCs was remarkably improved from 6.84% for the control film to 9.67% for the La3+-modified film.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.languageEnglish
dc.language.isoen_US
dc.publisherAmerican Chemical Society
dc.publisher.placeUnited States
dc.relation.ispartofstudentpublicationY
dc.relation.ispartofpagefrom1289
dc.relation.ispartofpageto1294
dc.relation.ispartofissue3
dc.relation.ispartofjournalACS Applied Materials and Interfaces
dc.relation.ispartofvolume4
dc.rights.retentionY
dc.subject.fieldofresearchSolid State Chemistry
dc.subject.fieldofresearchColloid and Surface Chemistry
dc.subject.fieldofresearchElectrochemistry
dc.subject.fieldofresearchChemical Engineering
dc.subject.fieldofresearchMacromolecular and Materials Chemistry
dc.subject.fieldofresearchPhysical Chemistry (incl. Structural)
dc.subject.fieldofresearchcode030206
dc.subject.fieldofresearchcode030603
dc.subject.fieldofresearchcode030604
dc.subject.fieldofresearchcode0904
dc.subject.fieldofresearchcode0303
dc.subject.fieldofresearchcode0306
dc.titleHigh-Performance Nanoporous TiO2/La2O3 Hybrid Photoanode for Dye-Sensitized Solar Cells
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.facultyGriffith Sciences, Griffith School of Environment
gro.rights.copyrightSelf-archiving of the author-manuscript version is not yet supported by this journal. Please refer to the journal link for access to the definitive, published version or contact the authors for more information.
gro.date.issued2012
gro.hasfulltextNo Full Text
gro.griffith.authorZhao, Huijun
gro.griffith.authorZhang, Shanqing
gro.griffith.authorWen, William Y.
gro.griffith.authorYu, Hua
gro.griffith.authorXue, Bofei
gro.griffith.authorLiu, Porun
gro.griffith.authorQiu, Jingxia


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

  • Journal articles
    Contains articles published by Griffith authors in scholarly journals.

Show simple item record