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dc.contributor.authorOliveira, Anne Esther Ribeiro Targino Pereira dept_BR
dc.contributor.authorBonatto, Fernandopt_BR
dc.contributor.authorAlves, Annelise Kopppt_BR
dc.contributor.authorFragassa, Cristianopt_BR
dc.date.accessioned2020-01-16T04:09:17Zpt_BR
dc.date.issued2019pt_BR
dc.identifier.issn1757-899Xpt_BR
dc.identifier.urihttp://hdl.handle.net/10183/204353pt_BR
dc.description.abstractSeeking to study innovative solar cell compositions with the goal to reach the highest energy efficiency level attainable, the aim of this study was to develop a route to obtain a solar cell composed by hybrid perovskite (CH3NH3PbI3) using a sequential deposition method through the techniques of spin-coating and immersion. Initially, the deposition of PbI2 thin film of was performed on a FTO/glass substrate coated with TiO2, which was subsequently converted into perovskite crystals through spin coating using a CH3NH3I solution. The influence of the PbI2 layer thickness on the formation of CH3NH3PbI3 crystals was evaluated. The hydrophilic characteristic of TiO2 affects the distribution of the crystals nucleation sites, since PbI2 possesses a non-polar liquid characteristic. The characterization of the perovskite thin films showed that thickness affects directly the bandgap and the surface morphology, revealing the presence of dendritic structures and acicular crystals. Both growth and coverage increased for thinner layers of PbI2. It was also possible to observe an increased uniformity in the film for smaller PbI2 layers.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofIOP Conference series : materials science and engineering. [Bristol, UK]. Vol. 659 (2019), 012083, 8 p.pt_BR
dc.rightsOpen Accessen
dc.subjectPerovskitapt_BR
dc.subjectFilmes finospt_BR
dc.subjectCélulas solarespt_BR
dc.titleSequential deposition method of TiO2/CH3NH3PbI3 films for solar cell applicationpt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb001106828pt_BR
dc.type.originEstrangeiropt_BR


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