Hydrothermal synthesis, morphology and photoluminescence of hexagonal SrSiO₃:Eu²⁺ micro-octahedrons and prism-like hollow microstructures

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• 作者：Zhengwu Lu^a ; ^{lu.zhengwu@hitsz.edu.cn} ; ^{lu.zhengwu@yahoo.com.cn} ; Luqian Weng^a ; Shenhua Song^a ; Peixin Zhang^b ; ^{pxzhang96@yahoo.com} ; Xiongbiao Luo^b
• 关键词：SrSiO3 ; Hydrothermal ; Photoluminescence ; Microstructure
• 刊名：Materials Chemistry and Physics
• 出版年：2012
• 出版时间：15 February 2012
• 年：2012
• 卷：132
• 期：2-3
• 页码：800-807
• 全文大小：2198 K

文摘

In this paper, we investigated the structure, morphology and photoluminescence properties of hexagonal SrSiO₃:Eu²⁺ micro-octahedrons and prism-like hollow microstructures prepared by the hydrothermal method at a relatively low temperature (180 ¡ãC). Reactant concentration and reaction time showed strong effects on the phase formation and morphology of the products. The prepared samples were systematically characterized by X-ray diffraction, energy dispersive X-ray spectrometry, field emission scanning electron microscopy, excitation and emission photoluminescence (PL). The possible formation mechanisms of these SrSiO₃:Eu²⁺ microcrystals were proposed. Finally, the PL properties of SrSiO₃:Eu²⁺ microcrystals were also investigated.