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SrWO_4纳米材料的制备及其发光性能 被引量：4

Preparation and Photoluminescence of SrWO_4 Nanomaterial
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摘要 采用反相微乳液法和溶剂热法制备了SrWO4纳米材料,探讨了反应条件对产物的结构和形貌的影响,采用X射线衍射(XRD)、场发射扫描电镜(FESEM)和光致发光(PL)谱等手段表征了产物结构、形貌,测试了发光性能。结果表明,采用微乳液法制备SrWO4材料时,反应时间和表面活性剂浓度是影响SrWO4产物形貌的重要因素,通过改变这2个因素得到了不同形貌的SrWO4纳米材料,如菜花状、树杈状、花束状等。而溶剂热法只得到SrWO4纳米颗粒。室温PL谱表明,所制备的SrWO4材料具有较强的绿光(400～450nm)发射光谱。 SrWO4 nanomaterials with different morphologies are prepared successfully via inverse microemulsion and microemulsion-assisted solvothermal methods. Effects of reaction conditions on the structure and morphologies of SrWO4 samples are investigated. The structure, morphology and photolumineseence property of the SrWO4 samples are characterized with XRD, FESEM and PL spectra. The results show that reaction time and surfaetant concentration in microemulsion procedure play important roles in the preparation of SrWO4 samples with different morphologies. Cauliflower-like, tree branch-like and flower bundle-like of SrWO4 samples are obtained by changing the reaction time and surfactant concentration. Only SrWO4 nanoparticles are achieved via the solvothermal method. The room temperature PL spectra shows that the SrWO4 samples emit stronger green spectra in about 400-450nm.
作者 邢光建 李钰梅 李永良 华雯 王怡 武光明
机构地区 北京石油化工学院材料科学与工程系 北京师范大学分析测试中心 北京石油化工学院数理系
出处 《材料导报》 EI CAS CSCD 北大核心 2010年第4期4-7,共4页 Materials Reports
基金 北京市教委面上项目(KM200910017004)
关键词 SrWO4 形貌 光致发光 制备 SrWO4 , morphology, photoluminescence, preparation
分类号 O614.23 [理学—无机化学] TB321 [一般工业技术—材料科学与工程]
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参考文献14

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材料导报
2010年 第4期

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