Artículo
Standardless determination of nanometric thicknesses in stratified samples by electron probe microanalysis
Pereyra, Gaston David
; Oliva, Fabiana Yolanda
; Budini, Nicolas
; Risso, Gustavo Armando
; Pérez, P. D.; Suárez, S.; Trincavelli, Jorge Carlos
Fecha de publicación:
09/2020
Editorial:
Pergamon-Elsevier Science Ltd
Revista:
Spectrochimica Acta Part B: Atomic Spectroscopy
ISSN:
0584-8547
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
A standardless method for the determination of nanometric thicknesses was developed on the basis of the detection of characteristic X rays. The method was developed aiming to the morphological characterization of anodes of lithium-ion batteries, particularly for those based on binder free Si/C binary composites generated by sputtering deposition. Even when the procedure was designed for this particular case of nano-stratified samples consisting of a Si film deposited onto a C layer, which in turn is deposited on a Cu substrate, it is easily extensible to other configurations. To obtain the thickness of the deepest layer it is necessary to know the thickness of the surface layer. For this reason, the calculations involve an iterative strategy based on Monte Carlo simulations. The method was validated in a set of samples whose thicknesses were also determined by Rutherford backscattering spectrometry. In addition, the method was applied to another set of anodes, giving results that matched the expected values.
Palabras clave:
EPMA
,
LITHIUM-ION BATTERIES
,
NANOMATERIALS
,
THICKNESS
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Identificadores
Colecciones
Articulos(INFIQC)
Articulos de INST.DE INVESTIGACIONES EN FISICO- QUIMICA DE CORDOBA
Articulos de INST.DE INVESTIGACIONES EN FISICO- QUIMICA DE CORDOBA
Citación
Pereyra, Gaston David; Oliva, Fabiana Yolanda; Budini, Nicolas; Risso, Gustavo Armando; Pérez, P. D.; et al.; Standardless determination of nanometric thicknesses in stratified samples by electron probe microanalysis; Pergamon-Elsevier Science Ltd; Spectrochimica Acta Part B: Atomic Spectroscopy; 171; 9-2020; 1-8
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