Enhanced photoluminescence of Ce 3+ induced by an energy transfer from ZnO nanoparticles encapsulated in SiO 2

O. M. Ntwaeaborwa; P. H. Holloway

doi:10.1088/0957-4484/16/6/042

Enhanced photoluminescence of Ce ³⁺ induced by an energy transfer from ZnO nanoparticles encapsulated in SiO ₂

O. M. Ntwaeaborwa, P. H. Holloway

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

80 Citations (Scopus)

Abstract

ZnO nanoparticles were synthesized and successfully incorporated in Ce ³⁺-doped SiO ₂ matrix by a sol-gel method. Photoluminescence intensities were compared for ZnO nanoparticles, Ce ³⁺-doped SiO ₂ (SiO ₂:Ce ³⁺) and ZnO encapsulated in SiO ₂:Ce ³⁺ (ZnO-SiO ₂:Ce ³⁺) fabricated from sol-gels. Green emission from ZnO associated with anionic oxygen vacancies and blue broadband emission due to transitions in Ce ³⁺ ions were observed. The photoluminescence intensity of Ce ³⁺ was enhanced considerably by the energy transfer from ZnO nanoparticles.

Original language	English
Pages (from-to)	865-868
Number of pages	4
Journal	Nanotechnology
Volume	16
Issue number	6
DOIs	https://doi.org/10.1088/0957-4484/16/6/042
Publication status	Published - 1 Jun 2005
Externally published	Yes

ASJC Scopus subject areas

Bioengineering
General Chemistry
General Materials Science
Mechanics of Materials
Mechanical Engineering
Electrical and Electronic Engineering

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abstract = "ZnO nanoparticles were synthesized and successfully incorporated in Ce 3+-doped SiO 2 matrix by a sol-gel method. Photoluminescence intensities were compared for ZnO nanoparticles, Ce 3+-doped SiO 2 (SiO 2:Ce 3+) and ZnO encapsulated in SiO 2:Ce 3+ (ZnO-SiO 2:Ce 3+) fabricated from sol-gels. Green emission from ZnO associated with anionic oxygen vacancies and blue broadband emission due to transitions in Ce 3+ ions were observed. The photoluminescence intensity of Ce 3+ was enhanced considerably by the energy transfer from ZnO nanoparticles.",

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AU - Holloway, P. H.

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N2 - ZnO nanoparticles were synthesized and successfully incorporated in Ce 3+-doped SiO 2 matrix by a sol-gel method. Photoluminescence intensities were compared for ZnO nanoparticles, Ce 3+-doped SiO 2 (SiO 2:Ce 3+) and ZnO encapsulated in SiO 2:Ce 3+ (ZnO-SiO 2:Ce 3+) fabricated from sol-gels. Green emission from ZnO associated with anionic oxygen vacancies and blue broadband emission due to transitions in Ce 3+ ions were observed. The photoluminescence intensity of Ce 3+ was enhanced considerably by the energy transfer from ZnO nanoparticles.

AB - ZnO nanoparticles were synthesized and successfully incorporated in Ce 3+-doped SiO 2 matrix by a sol-gel method. Photoluminescence intensities were compared for ZnO nanoparticles, Ce 3+-doped SiO 2 (SiO 2:Ce 3+) and ZnO encapsulated in SiO 2:Ce 3+ (ZnO-SiO 2:Ce 3+) fabricated from sol-gels. Green emission from ZnO associated with anionic oxygen vacancies and blue broadband emission due to transitions in Ce 3+ ions were observed. The photoluminescence intensity of Ce 3+ was enhanced considerably by the energy transfer from ZnO nanoparticles.

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Enhanced photoluminescence of Ce ³⁺ induced by an energy transfer from ZnO nanoparticles encapsulated in SiO ₂

Abstract

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