Unconventional Disorder by Femtosecond Laser Irradiation in Fe2O3

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Autor(es): dc.contributorUniversidade Federal de São Carlos (UFSCar)-
Autor(es): dc.contributorUniversidade Estadual de Maringá (UEM)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorState University of Ponta Grossa RINGGOLD-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorBrazilian Center for Research in Energy and Materials (CNPEM)-
Autor(es): dc.creatorSouza, Josiane C.-
Autor(es): dc.creatorRibeiro, Renan A. P.-
Autor(es): dc.creatorG. Da Trindade, Letícia-
Autor(es): dc.creatorOliveira, Regiane C. De-
Autor(es): dc.creatorD. Costa, Leonardo-
Autor(es): dc.creatorC. De Oliveira, Marisa-
Autor(es): dc.creatorDe Lazaro, Sergio R.-
Autor(es): dc.creatorSambrano, Julio R.-
Autor(es): dc.creatorMendonça, Cleber R.-
Autor(es): dc.creatorDe Boni, Leonardo-
Autor(es): dc.creatorL. Pontes, Fenelon M.-
Autor(es): dc.creatorDe Oliveira, Adilson J. A.-
Autor(es): dc.creatorLeite, Edson R.-
Autor(es): dc.creatorLongo, Elson-
Data de aceite: dc.date.accessioned2025-08-21T19:21:26Z-
Data de disponibilização: dc.date.available2025-08-21T19:21:26Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2020-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1021/acsomega.1c04079-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/222741-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/222741-
Descrição: dc.descriptionThis paper demonstrates that femtosecond laser-irradiated Fe2O3 materials containing a mixture of α-Fe2O3 and ϵ-Fe2O3 phases showed significant improvement in their photoelectrochemical performance and magnetic and optical properties. The absence of Raman-active vibrational modes in the irradiated samples and the changes in charge carrier emission observed in the photocurrent density results indicate an increase in the density of defects and distortions in the crystalline lattice when compared to the nonirradiated ones. The magnetization measurements at room temperature for the nonirradiated samples revealed a weak ferromagnetic behavior, whereas the irradiated samples exhibited a strong one. The optical properties showed a reduction in the band gap energy and a higher conductivity for the irradiated materials, causing a higher current density. Due to the high performance observed, it can be applied in dye-sensitized solar cells and water splitting processes. Quantum mechanical calculations based on density functional theory are in accordance with the experimental results, contributing to the elucidation of the changes caused by femtosecond laser irradiation at the molecular level, evaluating structural, energetic, and vibrational frequency parameters. The surface simulations enable the construction of a diagram that elucidates the changes in nanoparticle morphologies.-
Descrição: dc.descriptionLIEC - CDMF Department of Chemistry Federal University of São Carlos RINGGOLD-
Descrição: dc.descriptionDepartment of Chemistry State University of Minas Gerais - UEMG-
Descrição: dc.descriptionDepartment of Chemistry São Paulo State University - UNESP-
Descrição: dc.descriptionModeling and Molecular Simulations Group São Paulo State University - UNESP-
Descrição: dc.descriptionPhysics Department Federal University of São Carlos-
Descrição: dc.descriptionDepartment of Chemistry State University of Ponta Grossa RINGGOLD-
Descrição: dc.descriptionDepartment of Physics and Materials Science Institute of Physics University of São Paulo-
Descrição: dc.descriptionBrazilian Nanotechnology National Laboratory (LNNano) Brazilian Center for Research in Energy and Materials (CNPEM)-
Descrição: dc.descriptionDepartment of Chemistry São Paulo State University - UNESP-
Descrição: dc.descriptionModeling and Molecular Simulations Group São Paulo State University - UNESP-
Idioma: dc.languageen-
Relação: dc.relationACS Omega-
???dc.source???: dc.sourceScopus-
Título: dc.titleUnconventional Disorder by Femtosecond Laser Irradiation in Fe2O3-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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