Luminescence properties of Tb3+ - Sm3+ codoped glasses for white light emitting diodes

Xiaoluan Liang, Yunxia Yang, Chaofeng Zhu, Shuanglong Yuan, Guorong Chen, Allan Pring, Fang Xia

Research output: Contribution to journalArticlepeer-review

101 Citations (Scopus)

Abstract

Photoluminescence properties of silicate and borosilicate glasses codoped with Tb3+ and Sm3+ ions have been characterized by excitation and emission spectroscopies. When excited by ultraviolet light the glasses emit a combination of green and orange-red wavelengths giving white light. The ratio of the intensities of orange-red to green emissions can be tuned by varying both the concentration of the Sm3+ ion and an the composition of the glass matrix. The excitation and emission spectra show a self-quenching effect for the Sm3+ ions and an energy transfer from Tb3+ (D45) to Sm3+ (G 52 4).

Original languageEnglish
Article number091104
Number of pages4
JournalApplied Physics Letters
Volume91
Issue number9
DOIs
Publication statusPublished - 7 Sep 2007
Externally publishedYes

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