Work

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

Year: 2008

Type: article

Abstract: Spherical particles of rare-earth doped LaF3 are synthesized through refluxing in glycerol/water media. The low-voltage cathodoluminescence of LaF3:Eu due to D50→F71 and D50→F72 transitions 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 LaF3 are promising as highly efficient low-voltage cathodoluminescent phosphors, which have received considerably less attention.

Source: Applied Physics Letters

DOI: 10.1063/1.2998582

Authors: Zhen-Ling Wang, H. L. W. Chan, Hiu-Ling Li, J. H. Hao

Institutions: Hong Kong Polytechnic University, Zhoukou Normal University

Language: English

Topic: Luminescence Properties of Advanced Materials

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: green

Funders: Zhoukou Normal University, Natural Science Foundation of Henan Province

OpenAlex ID: W1628651079

FWCI: 15.49

Cites: 23

Cited by: 483

Related to: 9