Effects of Sr2+ Doping on the Luminescent Properties of CaTiO3: Pr3+

Guo Yin Yan; Ke Hui Qiu; Si Zhu Chen; Ce Zhao

doi:10.4028/www.scientific.net/MSF.814.404

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HomeMaterials Science ForumMaterials Science Forum Vol. 814Effects of Sr2+ Doping on the Luminescent...

Effects of Sr²⁺ Doping on the Luminescent Properties of CaTiO₃: Pr³⁺

Abstract:

The perovskites red phosphors activated by Pr³⁺were prepared via the combustion method, using citric acid as a fuel and complex agent. The samples were characterized by X-ray powder diffraction and fluorescence spectrophotometry respectively. The effects of calcination temperature and doping Sr²⁺ion concentration on the phase compositions and luminescence properties were investigated. The CaTiO₃: Pr³⁺ can be obtained with high purity and good crystallinity by the combustion method at different calcination temperatures (750 oC, 850 oC, 900 oC, 950 oC and 1000 oC) for 1 h. The sample obtained at 900 oC exhibits the maximum emission intensity. The crystal structure of the obtained Ca_1-xSr_xTiO₃: Pr³⁺(x = 0, 0.1, 0.2, 0.3, 0.4, 0.5, and 0.6) changes from perovskite to calcium strontium titanate when x ≥ 0.3. The sample exhibits the maximum red emitting when x = 0.4.

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Materials Science Forum (Volume 814)

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404-408

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https://doi.org/10.4028/www.scientific.net/MSF.814.404

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March 2015

Authors:

Guo Yin Yan, Ke Hui Qiu*, Si Zhu Chen, Ce Zhao

Keywords:

CaTiO₃: Pr³⁺, Combustion Method, Luminescence

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