| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5400147 | Journal of Luminescence | 2014 | 5 Pages |
Abstract
The bright blue emission at 420Â nm, originating from the charge transfer transition of the self-activated SnO6 octahedron, was observed in Ca3SnSi2O9 host matrix. Bi3+, Dy3+ and Eu3+ exhibited their characteristic emission under ultraviolet excitation when these activators were doped into Ca3SnSi2O9, respectively. The emission intensity located at the blue-yellow and red region of Dy3+ and Eu3+ could be further improved when Bi3+ was co-doped in Dy3+, Eu3+ doped Ca3SnSi2O9. Furthermore, a tunable color emission, especially the white light, was realized in Ca3SnSi2O9: Bi3+, Dy3+, Eu3+ phosphors by adjusting the relative concentration of the activators. It demonstrates that Bi3+, Dy3+, Eu3+ codoped Ca3SnSi2O9 could potentially be used as a tricolor phosphor for the fabrication of phosphor-converted light emitting diodes (pc-LED).
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Authors
Xue Yu, Lei Zhang, Xuhui Xu, Ting Wang, Hongling Yu, Tingming Jiang, Qing Jiao, Zhengwen Yang, Dacheng Zhou, Jianbei Qiu,