O2 plasma sintering study of TiO2 photoelectrodes in dye solar cells

dc.contributor.authorMoraes R.S.
dc.contributor.authorGoncalves A.D.
dc.contributor.authorStegemann C.
dc.contributor.authorda Silva Sobrinho A.S.
dc.contributor.authorMiyakawa W.
dc.contributor.authorMassi M.
dc.date.accessioned2024-03-13T00:51:15Z
dc.date.available2024-03-13T00:51:15Z
dc.date.issued2017
dc.description.abstract© 2017 Elsevier B.V.The development of more efficient photoelectrochemical solar cells has been, over the years, the subject of many scientific researches. In this paper a methodology was established to carry out the sintering process of nanoporous TiO2 layer by using plasma, which was compared with sintered layers made by the conventional sintering process in a furnace. The TiO2 commercial paste was spread by doctor-blading technique and subjected to different sintering processes. Porous layer samples were subjected to structural and morphological analyses. Then photoelectrodes dye-loading was measured by optical spectrophotometry. The quality of the layers under plasma sintering process in terms of weight loss and removal of organic compounds was evaluated by thermogravimetric analysis, mass spectrometry and FT-IR. The results showed that the plasma sintering process favors the adsorption of dye on the layer surface due to the creation of active states caused by O2 reactive plasma. Furthermore the O2 plasma process provides enough energy for removing organic compounds arising from the TiO2 paste and for providing nanoparticle sintering. Solar cells assembled with the plasma-sintered layers had a power conversion efficiency 20.1% higher than the obtained in solar cells sintered in a conventional furnace, proving the efficiency of the plasma sintering process.
dc.description.firstpage61
dc.description.lastpage68
dc.description.volume358
dc.identifier.doi10.1016/j.jpowsour.2017.05.025
dc.identifier.issn0378-7753
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/35864
dc.relation.ispartofJournal of Power Sources
dc.rightsAcesso Aberto
dc.subject.otherlanguageDye-loading
dc.subject.otherlanguageDye-sensitized solar cells
dc.subject.otherlanguagePlasma sintering
dc.titleO2 plasma sintering study of TiO2 photoelectrodes in dye solar cells
dc.typeArtigo
local.scopus.citations4
local.scopus.eid2-s2.0-85019256800
local.scopus.subjectConventional sintering
local.scopus.subjectDye loading
local.scopus.subjectMorphological analysis
local.scopus.subjectNanoparticle sintering
local.scopus.subjectOptical spectrophotometry
local.scopus.subjectPhotoelectrochemical solar cell
local.scopus.subjectPlasma sintering
local.scopus.subjectPower conversion efficiencies
local.scopus.updated2024-05-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85019256800&origin=inward
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