Sb doping of VLS synthesized SnO2 nanowires probed by Raman and XPS spectroscopy

Chemical Physics Letters

20 de junho de 2018 LAbI UFSCar Artigo 0

Sb doping of VLS synthesized SnO2 nanowires probed by Raman and XPS spectroscopy IMAGEM

Sb doping of VLS synthesized SnO₂ nanowires probed by Raman and XPS spectroscopy

Abstract: We here report the growth and structural characterization of Sb-doped SnO₂ nanowires synthesized by Vapor-Liquid-Solid technique using X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray spectroscopy, X-ray Photoelectron Spectroscopy (XPS) and Raman spectroscopy. Both X-ray diffraction and Raman spectroscopy exhibited typical features of the rutile phase of SnO₂ nanowires for all samples. The analysis of XPS confirmed the Sb doping effectiveness. In addition, Raman spectra revealed inactive modes (242 and 284 cm⁻¹) attributed to local structural disorder caused by the incorporation of the dopant into the SnO₂ lattice and leading to the breakdown of the Raman selection rules.

Author(s): Costa, I. M.; Colmenares, Y. N.; Pizani, P. S.; et al.

Chemical Physics Letters

Volume: 695 Pages: 125-130 Published: 2018

DOI: https://doi.org/10.1016/j.cplett.2018.02.014

PDF: Sb doping of VLS synthesized SnO2 nanowires probed by Raman and XPS spectroscopy

2018

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O Laboratório Aberto de Interatividade para Disseminação do Conhecimento Científico e Tecnológico (LAbI), vinculado à Universidade Federal de São Carlos (UFSCar), é voltado à prática da divulgação científica pautada na interatividade; nas relações entre Ciência, Arte e Tecnologia.