Seeded growth synthesis, reshaping, and damping of the localized surface plasmon resonance in Au@Fe2O3 nanoparticles

被引：1

作者：

Ortega-Guzman, J. E. ^{[1
,2
]}

Reyes, C. ^{[2
]}

Leon, J. A. ^{[2
]}

Tavizon, G. ^{[3
]}

Arenas, J. A. ^{[2
]}

机构：

[1] Univ Nacl Autonoma Mexico, Programa Maestria & Doctorado Ciencias Quim, Mexico City 04510, DF, Mexico

[2] Univ Nacl Autonoma Mexico, CISAN, Mexico City, Mexico

[3] Univ Nacl Autonoma Mexico, Fac Quim, Mexico City 04510, Mexico

来源：

MATERIALS LETTERS | 2024年 / 357卷

关键词：

Nanoparticles; Crystal structure; Electron microscopy; Spectroscopy; NANORODS;

D O I：

10.1016/j.matlet.2023.135709

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Core@shell Au@Fe2O3 nanoparticles with different iron oxide content were synthesized by a seeded-growth approach. The morphology and structural analysis were carried out by transmission electron microscopy (TEM and HR-TEM) and X-ray diffraction (XRD). The oxidation state of the iron was determined through cyclic voltammetry measurements. The plasmonic resonance modes were investigated by Infrared (IR) and UV-vis spectroscopy. The morphology analysis of Au nanowires (AuNW's) shows a modification from NW's (seeds) to faceted nanoparticles, while spectroscopic studies show a disappearance of the Propagation Surface Plasmon Resonance (PSPR) due to this change. Localized Surface Plasmon Resonance (LSPR) is damped due to the aggregation of the iron oxide layer.

引用

页数：5

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