1. Luminescent properties of SrAl2B2O7: Ce3+, Tb3+
- Author
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Yang, Yuming, Bao, Amurisana, Lai, Hua, Tao, Yanchun, and Yang, Hua
- Subjects
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PHOTOLUMINESCENCE , *NITRATES , *GELATION , *ENERGY transfer , *PHOSPHORS , *STRONTIUM compounds , *X-ray diffraction , *CHEMICAL kinetics - Abstract
Abstract: By using metal nitrates as starting materials, SrAl2B2O7: Tb3+ and SrAl2B2O7: Ce3+, Tb3+ powder phosphors were prepared by sol–gel method. X-ray diffraction (XRD), photoluminescence excitation and emission, as well as kinetic decays were employed to characterize the resulting samples. The results show that energy transfers from Ce3+ to Tb3+ ions. The emission intensity of Tb3+ ions in SrAl2B2O7 could be greatly intensified when Ce3+ ions are doped into SrAl2B2O7: Tb3+. The decay times of SrAl2B2O7: Tb3+ were prolonged when Ce3+ ions were doped. The doping of Ce3+ ions not only improved the luminescent intensity, but also made the materials gets stable luminescent properties. [Copyright &y& Elsevier]
- Published
- 2009
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