Multifunctional iron and iron oxide nanoparticles in silica

被引：11

作者：

Simkiene, Irena ^{[1
]}

Treideris, Marius ^{[1
]}

Niaura, Gediminas ^{[1
]}

Szymczak, Ritta ^{[2
]}

Aleshkevych, Pavlo ^{[2
]}

Reza, Alfonsas ^{[1
]}

Kasalynas, Irmantas ^{[1
]}

Bukauskas, Virginijus ^{[1
]}

Babonas, Gintautas J. ^{[1
]}

机构：

[1] Ctr Phys Sci & Technol, LT-01108 Vilnius, Lithuania

[2] PAS, Inst Phys, PL-02668 Warsaw, Poland

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2011年 / 130卷 / 03期

关键词：

Iron oxide nanoparticles; Silica matrix; Raman spectroscopy; Magnetic properties; OPTICAL-PROPERTIES; FILMS; NANOCOMPOSITES; FE2O3; PARTICLES; MAGHEMITE; HEMATITE;

D O I：

10.1016/j.matchemphys.2011.08.025

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Iron and iron oxide nanoparticles in silica layers deposited by sol-gel techniques on Si wafers were formed and studied. It was shown that multifunctional nanoparticles of different iron oxides possessing various physical properties can be fabricated by means of post-growth annealing of (SiO2:Fe)/SiO2/Si samples in various atmospheres. The hematite, maghemite, and iron nanoparticles were found to be dominant upon annealing the samples in air, argon, and hydrogen atmosphere, respectively. The physical properties of produced hybrid structures were studied by Raman and FT-IR spectroscopy, spectroscopic ellipsometry, AFM, and magnetic measurements. The sol-gel technique with subsequent annealing procedure is demonstrated to be an effective method for the formation of multifunctional hybrid structures composed of iron or iron oxide nanoparticles in silica matrix. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：1026 / 1032

页数：7

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