Nuclear based techniques in multifunctional materials characterization
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2017
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60 YEARS OF IEA-R1: INTERNATIONAL WORKSHOP ON UTILIZATION OF RESEARCH REACTORS
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Resumo
The Nuclear Science and its technologies have provided fundamental tools for the
understanding of new chemical and physical properties that help the development of
the new age of multifunctional materials such as the Perovskites for photovoltaics
and fuel cells, the luminescent oxides for lighting and biomarkers and the thin films in
semiconductors. One of the most important parameters that defines key properties
of the Perovskites to be applied as the cathode in fuel cells is their crystal structure
and its point defects (e.g. oxygen vacancies), which can be determined by neutron
diffraction (Fig. 1a). Photonic materials like luminescent nanoparticles, once doped with Rare Earth
ions, they can emit light when excited with UV/IR, being used in probing bioassays.
In this case, the precise determination of Rare Earth concentration by Instrumental
Neutron Activation Analysis (INAA) leads to ensure the desired spectroscopy properties
to prepare efficient probing nanoparticles (Fig.1b). Furthermore, nuclear based
techniques such as Rutherford Backscattering Spectrometry (RBS) help us in determining
the thickness and the elemental composition of thin films (Fig. 1c), which is
not usually easy through other conventional techniques. In other words, the nuclear
based techniques applied on materials characterization play a key role in providing a solid understanding on the physical and chemical properties of the condensed matter.
In summary, this work presents three cases where the use of the Nuclear Techniques
improves the characterization of different materials. All the data shown here were
collect and published somehow, as indicated below.
Como referenciar
BONTURIM, E.; MAZZOCCHI, V.L.; PARENTEA, C.B.R.; MOREIRA, E.G.; SEO, E.S.M.; FELINTO, M.C.F.C. Nuclear based techniques in multifunctional materials characterization. In: 60 YEARS OF IEA-R1: INTERNATIONAL WORKSHOP ON UTILIZATION OF RESEARCH REACTORS, November 28 - December 01, 2017, São Paulo, SP. Abstract... São Paulo, SP: Instituto de Pesquisas Energéticas e Nucleares, 2017. p. 80-81. Disponível em: http://repositorio.ipen.br/handle/123456789/28782. Acesso em: 12 May 2024.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.