Synthesis and characteristics of multifunctional Fe3O4–SiO2–CdS magnetic-fluorescent nanocomposites

doi:10.1088/1674-1056/20/8/086101

中国物理B ›› 2011, Vol. 20 ›› Issue (8): 86101-086101.doi: 10.1088/1674-1056/20/8/086101

• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇下一篇

Synthesis and characteristics of multifunctional Fe₃O₄–SiO₂–CdS magnetic-fluorescent nanocomposites

张日晨, 刘玲, 许小亮

Department of Physics, University of Science and Technology of China, Hefei 230026, China

收稿日期:2010-10-14 修回日期:2011-03-11 出版日期:2011-08-15 发布日期:2011-08-15
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 50872129).

Synthesis and characteristics of multifunctional Fe₃O₄–SiO₂–CdS magnetic-fluorescent nanocomposites

Zhang Ri-Chen(张日晨), Liu Ling(刘玲), and Xu Xiao-Liang(许小亮)^†

Department of Physics, University of Science and Technology of China, Hefei 230026, China

Received:2010-10-14 Revised:2011-03-11 Online:2011-08-15 Published:2011-08-15
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 50872129).

摘要/Abstract

摘要： A luminescent superparamagnetic nanocomposite with an Fe₃O₄—SiO₂—CdS structure is synthesised. Coated with a silica shell, Fe₃O₄ nanoparticles and CdS quantum dots (QDs) are successfully assembled together. Analysed from the test results of X-ray diffraction (XRD), transmission electron microscopy (TEM), high resolution transmission electron microscopy (HRTEM), hysteresis loop, and photoluminescence (PL) spectrum, these nanocomposites exhibit superparamagnetic and photoluminescent properties.

Abstract: A luminescent superparamagnetic nanocomposite with an Fe₃O₄—SiO₂—CdS structure is synthesised. Coated with a silica shell, Fe₃O₄ nanoparticles and CdS quantum dots (QDs) are successfully assembled together. Analysed from the test results of X-ray diffraction (XRD), transmission electron microscopy (TEM), high resolution transmission electron microscopy (HRTEM), hysteresis loop, and photoluminescence (PL) spectrum, these nanocomposites exhibit superparamagnetic and photoluminescent properties.

Key words: superparamagnetic nanoparticles, CdS quantum dots

中图分类号: (X-ray diffraction and scattering)

61.05.C-

78.55.-m (Photoluminescence, properties and materials) 75.75.-c (Magnetic properties of nanostructures) 68.37.Lp (Transmission electron microscopy (TEM))

张日晨, 刘玲, 许小亮. Synthesis and characteristics of multifunctional Fe₃O₄–SiO₂–CdS magnetic-fluorescent nanocomposites[J]. 中国物理B, 2011, 20(8): 86101-086101.

Zhang Ri-Chen(张日晨), Liu Ling(刘玲), and Xu Xiao-Liang(许小亮) . Synthesis and characteristics of multifunctional Fe₃O₄–SiO₂–CdS magnetic-fluorescent nanocomposites[J]. Chin. Phys. B, 2011, 20(8): 86101-086101.

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Synthesis and characteristics of multifunctional Fe₃O₄–SiO₂–CdS magnetic-fluorescent nanocomposites

Synthesis and characteristics of multifunctional Fe₃O₄–SiO₂–CdS magnetic-fluorescent nanocomposites

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