Gd2O3:RE3+ and GdAlO3:RE3+ (RE = Eu, Dy) phosphor: Synthesis, characterization and bioimaging application

Thangaraj Selvalakshmi; Parthiban Venkatesan; Shu-Pao Wu; S. Velmathi; A. Chandra Bose

doi:10.1166/jnn.2017.12578

Gd₂O₃:RE³⁺ and GdAlO₃:RE³⁺ (RE = Eu, Dy) phosphor: Synthesis, characterization and bioimaging application

Thangaraj Selvalakshmi, Parthiban Venkatesan, Shu-Pao Wu, S. Velmathi, A. Chandra Bose^*

^*Corresponding author for this work

Department of Applied Chemistry

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

5 Scopus citations

Abstract

Citrate based sol-gel method is used to synthesize Gd₂O₃:RE³⁺ and GdAlO₃:RE³⁺ (RE = Eu, Dy) phosphors. In the present work, the phosphors are characterized using the techniques like X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), diffuse reflectance spectroscopy (DRS) and photoluminescence spectroscopy (PL). Fluorescence confocal microscopy reveals the potential usage of phosphors in biological medium for biolabeling application. XRD patterns confirm the phase purity of Gd₂O₃ and GdAlO₃. The crystallite size and lattice parameters are estimated from XRD result. FTIR spectra are used to investigate the functional group present in the phosphor. The optical emission properties imply that the emission peak positions on Eu³⁺ or Dy³⁺ ion are size and host independent. Finally, RAW 264.7 macrophages cell line is used to test the bioimaging performance of the phosphors.

Original language	English
Pages (from-to)	1178-1184
Number of pages	7
Journal	Journal of Nanoscience and Nanotechnology
Volume	17
Issue number	2
DOIs	https://doi.org/10.1166/jnn.2017.12578
State	Published - 1 Jan 2017

Keywords

Bioimaging
Dy
Eu
Photoluminescence
RAW 264.7

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title = "Gd2O3:RE3+ and GdAlO3:RE3+ (RE = Eu, Dy) phosphor: Synthesis, characterization and bioimaging application",

abstract = "Citrate based sol-gel method is used to synthesize Gd2O3:RE3+ and GdAlO3:RE3+ (RE = Eu, Dy) phosphors. In the present work, the phosphors are characterized using the techniques like X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), diffuse reflectance spectroscopy (DRS) and photoluminescence spectroscopy (PL). Fluorescence confocal microscopy reveals the potential usage of phosphors in biological medium for biolabeling application. XRD patterns confirm the phase purity of Gd2O3 and GdAlO3. The crystallite size and lattice parameters are estimated from XRD result. FTIR spectra are used to investigate the functional group present in the phosphor. The optical emission properties imply that the emission peak positions on Eu3+ or Dy3+ ion are size and host independent. Finally, RAW 264.7 macrophages cell line is used to test the bioimaging performance of the phosphors.",

keywords = "Bioimaging, Dy, Eu, Photoluminescence, RAW 264.7",

author = "Thangaraj Selvalakshmi and Parthiban Venkatesan and Shu-Pao Wu and S. Velmathi and Bose, {A. Chandra}",

year = "2017",

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T2 - Synthesis, characterization and bioimaging application

AU - Selvalakshmi, Thangaraj

AU - Venkatesan, Parthiban

AU - Wu, Shu-Pao

AU - Velmathi, S.

AU - Bose, A. Chandra

PY - 2017/1/1

Y1 - 2017/1/1

N2 - Citrate based sol-gel method is used to synthesize Gd2O3:RE3+ and GdAlO3:RE3+ (RE = Eu, Dy) phosphors. In the present work, the phosphors are characterized using the techniques like X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), diffuse reflectance spectroscopy (DRS) and photoluminescence spectroscopy (PL). Fluorescence confocal microscopy reveals the potential usage of phosphors in biological medium for biolabeling application. XRD patterns confirm the phase purity of Gd2O3 and GdAlO3. The crystallite size and lattice parameters are estimated from XRD result. FTIR spectra are used to investigate the functional group present in the phosphor. The optical emission properties imply that the emission peak positions on Eu3+ or Dy3+ ion are size and host independent. Finally, RAW 264.7 macrophages cell line is used to test the bioimaging performance of the phosphors.

AB - Citrate based sol-gel method is used to synthesize Gd2O3:RE3+ and GdAlO3:RE3+ (RE = Eu, Dy) phosphors. In the present work, the phosphors are characterized using the techniques like X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), diffuse reflectance spectroscopy (DRS) and photoluminescence spectroscopy (PL). Fluorescence confocal microscopy reveals the potential usage of phosphors in biological medium for biolabeling application. XRD patterns confirm the phase purity of Gd2O3 and GdAlO3. The crystallite size and lattice parameters are estimated from XRD result. FTIR spectra are used to investigate the functional group present in the phosphor. The optical emission properties imply that the emission peak positions on Eu3+ or Dy3+ ion are size and host independent. Finally, RAW 264.7 macrophages cell line is used to test the bioimaging performance of the phosphors.

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