Highly efficient low-voltage cathodoluminescence of LaF3: Ln3+ (Ln= Eu3+, Ce3+, Tb3+) spherical particles

Zhen Ling Wang; H. L W Chan; Hiu Ling Li; Jianhua Hao

doi:10.1063/1.2998582

Highly efficient low-voltage cathodoluminescence of LaF3: Ln3+ (Ln= Eu3+, Ce3+, Tb3+) spherical particles

Zhen Ling Wang, H. L W Chan, Hiu Ling Li, Jianhua Hao

Research output: Journal article publication › Journal article › Academic research › peer-review

102 Citations (Scopus)

Abstract

Spherical particles of rare-earth doped LaF3are synthesized through refluxing in glycerol/water media. The low-voltage cathodoluminescence of LaF3:Eu due to5D0→7F1and5D0→7F2transitions was found to be sensitive to the site that Eu3+ ions occupied. The luminous efficiency of LaF3: Ce3+, Tb3+with green emission is improved from 1.53 to 2.02 lm/W compared with LaF3: Tb3+, due to the energy transfer processes from Ce3+to Tb3+ions. Our results suggest that the obtained spherical particles of rare-earth doped LaF3are promising as highly efficient low-voltage cathodoluminescent phosphors, which have received considerably less attention.

Original language	English
Article number	141106
Journal	Applied Physics Letters
Volume	93
Issue number	14
DOIs	https://doi.org/10.1063/1.2998582
Publication status	Published - 16 Oct 2008

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.2998582

http://hdl.handle.net/10397/551

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title = "Highly efficient low-voltage cathodoluminescence of LaF3: Ln3+ (Ln= Eu3+, Ce3+, Tb3+) spherical particles",

abstract = "Spherical particles of rare-earth doped LaF3are synthesized through refluxing in glycerol/water media. The low-voltage cathodoluminescence of LaF3:Eu due to5D0→7F1and5D0→7F2transitions was found to be sensitive to the site that Eu3+ ions occupied. The luminous efficiency of LaF3: Ce3+, Tb3+with green emission is improved from 1.53 to 2.02 lm/W compared with LaF3: Tb3+, due to the energy transfer processes from Ce3+to Tb3+ions. Our results suggest that the obtained spherical particles of rare-earth doped LaF3are promising as highly efficient low-voltage cathodoluminescent phosphors, which have received considerably less attention.",

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T1 - Highly efficient low-voltage cathodoluminescence of LaF3: Ln3+ (Ln= Eu3+, Ce3+, Tb3+) spherical particles

AU - Wang, Zhen Ling

AU - Chan, H. L W

AU - Li, Hiu Ling

AU - Hao, Jianhua

PY - 2008/10/16

Y1 - 2008/10/16

N2 - Spherical particles of rare-earth doped LaF3are synthesized through refluxing in glycerol/water media. The low-voltage cathodoluminescence of LaF3:Eu due to5D0→7F1and5D0→7F2transitions was found to be sensitive to the site that Eu3+ ions occupied. The luminous efficiency of LaF3: Ce3+, Tb3+with green emission is improved from 1.53 to 2.02 lm/W compared with LaF3: Tb3+, due to the energy transfer processes from Ce3+to Tb3+ions. Our results suggest that the obtained spherical particles of rare-earth doped LaF3are promising as highly efficient low-voltage cathodoluminescent phosphors, which have received considerably less attention.

AB - Spherical particles of rare-earth doped LaF3are synthesized through refluxing in glycerol/water media. The low-voltage cathodoluminescence of LaF3:Eu due to5D0→7F1and5D0→7F2transitions was found to be sensitive to the site that Eu3+ ions occupied. The luminous efficiency of LaF3: Ce3+, Tb3+with green emission is improved from 1.53 to 2.02 lm/W compared with LaF3: Tb3+, due to the energy transfer processes from Ce3+to Tb3+ions. Our results suggest that the obtained spherical particles of rare-earth doped LaF3are promising as highly efficient low-voltage cathodoluminescent phosphors, which have received considerably less attention.

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U2 - 10.1063/1.2998582

DO - 10.1063/1.2998582

M3 - Journal article

SN - 0003-6951

VL - 93

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 14

M1 - 141106

ER -

Highly efficient low-voltage cathodoluminescence of LaF3: Ln3+ (Ln= Eu3+, Ce3+, Tb3+) spherical particles

Abstract

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