Effect of Eu, Tb codoping on the luminescent properties of multifunctional nanocomposites

Lizhu Tong; Xiaozhen Ren; Xiaodong Chen; Hong Ding; Hua Yang

doi:10.1039/c4ra01944j

Effect of Eu, Tb codoping on the luminescent properties of multifunctional nanocomposites

Lizhu Tong, Xiaozhen Ren, Xiaodong Chen, Hong Ding, Hua Yang^*

^*Corresponding author for this work

Jilin University

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

The synthesis (by a facile two-step co-precipitation process) and characterization, are reported for good dispersed core-shell structured Fe ₃O₄@SiO₂@Y₂O₃:Eu ³⁺, Tb³⁺ nanocomposites with luminescent and magnetic properties. XRD patterns show that Fe₃O₄ core has crystallized with a good face-centered cubic structure; SiO₂ layer is amorphous and Y₂O₃ layer is cubic. TEM images show the synthesis of core-shell structured composite microspheres of uniform size with rough surface. For nanocomposites with same host (Y₂O₃), upon excitation with UV irradiation, fluorescent spectra show that there is a strong emission at around 610 nm corresponding to the forced electric dipole ⁵D₀-⁷F₂ transition of Eu ³⁺ and at around 545 nm corresponding to ⁵D ₄-⁷F₅ transition of Tb³⁺. We speculate that there exists energy transfer from Tb³⁺ to Eu ³⁺ ions from excitation spectra. Therefore, the multifunctional nanocomposites are expected to develop many potential applications in biomedical fields. This journal is

Original language	English
Pages (from-to)	22792-22797
Number of pages	6
Journal	RSC Advances
Volume	4
Issue number	43
DOIs	https://doi.org/10.1039/c4ra01944j
Publication status	Published - 2014
Externally published	Yes

ASJC Scopus Subject Areas

General Chemistry
General Chemical Engineering

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title = "Effect of Eu, Tb codoping on the luminescent properties of multifunctional nanocomposites",

abstract = "The synthesis (by a facile two-step co-precipitation process) and characterization, are reported for good dispersed core-shell structured Fe 3O4@SiO2@Y2O3:Eu 3+, Tb3+ nanocomposites with luminescent and magnetic properties. XRD patterns show that Fe3O4 core has crystallized with a good face-centered cubic structure; SiO2 layer is amorphous and Y2O3 layer is cubic. TEM images show the synthesis of core-shell structured composite microspheres of uniform size with rough surface. For nanocomposites with same host (Y2O3), upon excitation with UV irradiation, fluorescent spectra show that there is a strong emission at around 610 nm corresponding to the forced electric dipole 5D0-7F2 transition of Eu 3+ and at around 545 nm corresponding to 5D 4-7F5 transition of Tb3+. We speculate that there exists energy transfer from Tb3+ to Eu 3+ ions from excitation spectra. Therefore, the multifunctional nanocomposites are expected to develop many potential applications in biomedical fields. This journal is",

author = "Lizhu Tong and Xiaozhen Ren and Xiaodong Chen and Hong Ding and Hua Yang",

year = "2014",

doi = "10.1039/c4ra01944j",

language = "English",

volume = "4",

pages = "22792--22797",

journal = "RSC Advances",

issn = "2046-2069",

publisher = "Royal Society of Chemistry",

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}

TY - JOUR

T1 - Effect of Eu, Tb codoping on the luminescent properties of multifunctional nanocomposites

AU - Tong, Lizhu

AU - Ren, Xiaozhen

AU - Chen, Xiaodong

AU - Ding, Hong

AU - Yang, Hua

PY - 2014

Y1 - 2014

N2 - The synthesis (by a facile two-step co-precipitation process) and characterization, are reported for good dispersed core-shell structured Fe 3O4@SiO2@Y2O3:Eu 3+, Tb3+ nanocomposites with luminescent and magnetic properties. XRD patterns show that Fe3O4 core has crystallized with a good face-centered cubic structure; SiO2 layer is amorphous and Y2O3 layer is cubic. TEM images show the synthesis of core-shell structured composite microspheres of uniform size with rough surface. For nanocomposites with same host (Y2O3), upon excitation with UV irradiation, fluorescent spectra show that there is a strong emission at around 610 nm corresponding to the forced electric dipole 5D0-7F2 transition of Eu 3+ and at around 545 nm corresponding to 5D 4-7F5 transition of Tb3+. We speculate that there exists energy transfer from Tb3+ to Eu 3+ ions from excitation spectra. Therefore, the multifunctional nanocomposites are expected to develop many potential applications in biomedical fields. This journal is

AB - The synthesis (by a facile two-step co-precipitation process) and characterization, are reported for good dispersed core-shell structured Fe 3O4@SiO2@Y2O3:Eu 3+, Tb3+ nanocomposites with luminescent and magnetic properties. XRD patterns show that Fe3O4 core has crystallized with a good face-centered cubic structure; SiO2 layer is amorphous and Y2O3 layer is cubic. TEM images show the synthesis of core-shell structured composite microspheres of uniform size with rough surface. For nanocomposites with same host (Y2O3), upon excitation with UV irradiation, fluorescent spectra show that there is a strong emission at around 610 nm corresponding to the forced electric dipole 5D0-7F2 transition of Eu 3+ and at around 545 nm corresponding to 5D 4-7F5 transition of Tb3+. We speculate that there exists energy transfer from Tb3+ to Eu 3+ ions from excitation spectra. Therefore, the multifunctional nanocomposites are expected to develop many potential applications in biomedical fields. This journal is

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DO - 10.1039/c4ra01944j

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JO - RSC Advances

JF - RSC Advances

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ER -

Effect of Eu, Tb codoping on the luminescent properties of multifunctional nanocomposites

Abstract

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