Fabrication and characterization of transparent monolithic nanocomposites between YVO4: Bi3+,Eu3+ nanophosphor and TMAS-derived silica

Yoshiki Iso, Satoru Takeshita, Tetsuhiko Isobe

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

We fabricate monolithic nanocomposites of silica containing YVO 4:Bi3+,Eu3+ nanoparticles, which are synthesized by co-precipitation method via a citrate precursor. A basic aqueous solution of tetramethylammonium silicate is chosen as a silica source, since the YVO4:Bi3+,Eu3+ nanoparticles can be well-dispersed in this solution. The fabricated nanocomposites are transparent to the naked eye under white light and emit red light under near-UV light excitation through an interband transition of the nanoparticles followed by energy transfer to Eu3+. The net optical density at 365.0 nm for the nanocomposite is proportional to its thickness. Furthermore, its net photoluminescence intensity at 619.5 nm is proportional to the net optical density. Both proportional relationships are attributed to negligibly low light scattering intensity of the nanoparticles because of their well-dispersion in silica.

Original languageEnglish
Pages (from-to)717-722
Number of pages6
JournalOptical Materials
Volume36
Issue number3
DOIs
Publication statusPublished - 2014 Jan

Fingerprint

Silicon Dioxide
Nanocomposites
nanocomposites
Silica
Nanoparticles
silicon dioxide
Fabrication
nanoparticles
fabrication
Density (optical)
optical density
Silicates
citrates
Coprecipitation
Citric Acid
Ultraviolet radiation
Light scattering
Energy transfer
silicates
Photoluminescence

Keywords

  • Eu
  • Nanocomposite
  • Nanophosphor
  • Photoluminescence
  • Silica
  • Tetramethylammonium silicate
  • YVO:Bi

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics
  • Computer Science(all)

Cite this

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title = "Fabrication and characterization of transparent monolithic nanocomposites between YVO4: Bi3+,Eu3+ nanophosphor and TMAS-derived silica",
abstract = "We fabricate monolithic nanocomposites of silica containing YVO 4:Bi3+,Eu3+ nanoparticles, which are synthesized by co-precipitation method via a citrate precursor. A basic aqueous solution of tetramethylammonium silicate is chosen as a silica source, since the YVO4:Bi3+,Eu3+ nanoparticles can be well-dispersed in this solution. The fabricated nanocomposites are transparent to the naked eye under white light and emit red light under near-UV light excitation through an interband transition of the nanoparticles followed by energy transfer to Eu3+. The net optical density at 365.0 nm for the nanocomposite is proportional to its thickness. Furthermore, its net photoluminescence intensity at 619.5 nm is proportional to the net optical density. Both proportional relationships are attributed to negligibly low light scattering intensity of the nanoparticles because of their well-dispersion in silica.",
keywords = "Eu, Nanocomposite, Nanophosphor, Photoluminescence, Silica, Tetramethylammonium silicate, YVO:Bi",
author = "Yoshiki Iso and Satoru Takeshita and Tetsuhiko Isobe",
year = "2014",
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T1 - Fabrication and characterization of transparent monolithic nanocomposites between YVO4

T2 - Bi3+,Eu3+ nanophosphor and TMAS-derived silica

AU - Iso, Yoshiki

AU - Takeshita, Satoru

AU - Isobe, Tetsuhiko

PY - 2014/1

Y1 - 2014/1

N2 - We fabricate monolithic nanocomposites of silica containing YVO 4:Bi3+,Eu3+ nanoparticles, which are synthesized by co-precipitation method via a citrate precursor. A basic aqueous solution of tetramethylammonium silicate is chosen as a silica source, since the YVO4:Bi3+,Eu3+ nanoparticles can be well-dispersed in this solution. The fabricated nanocomposites are transparent to the naked eye under white light and emit red light under near-UV light excitation through an interband transition of the nanoparticles followed by energy transfer to Eu3+. The net optical density at 365.0 nm for the nanocomposite is proportional to its thickness. Furthermore, its net photoluminescence intensity at 619.5 nm is proportional to the net optical density. Both proportional relationships are attributed to negligibly low light scattering intensity of the nanoparticles because of their well-dispersion in silica.

AB - We fabricate monolithic nanocomposites of silica containing YVO 4:Bi3+,Eu3+ nanoparticles, which are synthesized by co-precipitation method via a citrate precursor. A basic aqueous solution of tetramethylammonium silicate is chosen as a silica source, since the YVO4:Bi3+,Eu3+ nanoparticles can be well-dispersed in this solution. The fabricated nanocomposites are transparent to the naked eye under white light and emit red light under near-UV light excitation through an interband transition of the nanoparticles followed by energy transfer to Eu3+. The net optical density at 365.0 nm for the nanocomposite is proportional to its thickness. Furthermore, its net photoluminescence intensity at 619.5 nm is proportional to the net optical density. Both proportional relationships are attributed to negligibly low light scattering intensity of the nanoparticles because of their well-dispersion in silica.

KW - Eu

KW - Nanocomposite

KW - Nanophosphor

KW - Photoluminescence

KW - Silica

KW - Tetramethylammonium silicate

KW - YVO:Bi

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