VUV-Photoluminescence Properties of (Gd, La)2O2CO3: Eu3+

Zhi Long Wang; Shi Qin Wang; Nin Yao; Xing Min Wei

doi:10.4028/www.scientific.net/AMR.1052.203

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1052VUV-Photoluminescence Properties of (Gd,...

VUV-Photoluminescence Properties of (Gd, La)₂O₂CO₃: Eu³⁺

Abstract:

(Gd,La)₂_-x O₂CO₃:Eu_x³⁺(0.01 ≤x≤0.04) were synthesized via a flux method at 400°C, and their photoluminescence properties under vacuum ultraviolet (VUV) excitation were examined. The excitation spectra showed two bands in the region from 125 nm to 300 nm, the first band centered at 190 nm was ascribed to absorption of related CO₃^2- complex, and the second broad band centered at 246nm and 278nm in Gd₂O₂CO₃:Eu³⁺ was ascribed to the charge transfer band of O^2-→ Eu³⁺. Series samples exhibited red emission at around 611 nm under vacuum ultraviolet excitation corresponding to the ⁵D₀ → ⁷F₂.transition of Eu³⁺.

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Periodical:

Advanced Materials Research (Volume 1052)

Pages:

203-206

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1052.203

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Online since:

October 2014

Authors:

Zhi Long Wang*, Shi Qin Wang, Nin Yao, Xing Min Wei

Keywords:

Gd₂O₂CO₃:Eu³⁺, Phosphor, Rare Earths

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