Document Type

Journal Article

Department/Unit

Department of Physics

Title

Low thermal quenching and high-efficiency Ce3+, Tb3+-co-doped Ca3Sc2Si3O12 green phosphor for white light-emitting diodes

Language

English

Abstract

Low thermal quenching and high-efficiency Ca3Sc 2Si3O12:Ce3+ (CSSO:Ce3+) phosphors with co-doping Tb3+ ion were prepared by a solid state method and the properties of these phosphors were investigated. The results showed that co-doping of Tb3+ not only enhances the photoluminescence remarkably and decreases the thermal quenching of the phosphor, but also heightens the performances of the LEDs fabricated with the phosphor. A high-efficiency and low color temperature white LED was fabricated with the prepared CSSO:1%Ce3+, 0.5%Tb3+ and a red phosphor, indicating that CSSO:1%Ce3+,0.5%Tb3+ phosphor is a suitable green phosphor for the fabrication of high-efficiency white LEDs. © 2011 Elsevier B.V.

Keywords

Ca3Sc2Si3O 12:Ce3+, Co-doping, LED, Phosphor

Publication Date

2011

Source Publication Title

Journal of Luminescence

Volume

131

Issue

8

Start Page

1589

End Page

1593

Publisher

Elsevier

DOI

10.1016/j.jlumin.2011.04.002

ISSN (print)

00222313

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