| 基于介孔纳米粒子模板合成兼有荧光和近红外发光的稀土核-壳结构纳米材料 |
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| 引用本文： | 张道军,樊志强,张闻,王学敏,刘云凌,霍启升.基于介孔纳米粒子模板合成兼有荧光和近红外发光的稀土核-壳结构纳米材料[J].高等学校化学学报,2011,32(3):609-612. |
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| 作者姓名： | 张道军 樊志强 张闻 王学敏 刘云凌 霍启升 |
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| 作者单位： | 吉林大学无机合成与制备化学国家重点实验室, 长春 130012 |
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| 摘 要： | 利用单分散性良好介孔SiO2纳米粒子为模板,选择Y2O3为基底，同时掺杂可见区红光中心Eu3+和近红外区Er3+(1.54 μm)发光中心，成功制备特殊结构的核壳多功能发光纳米材料. 光谱测试表明这种核壳材料同时具有可见区发光和近红外发光的双重性质. 表明Y2O3可作为红光Eu和近红外发光Er的良好基底材料. 该方法可以大大降低纳米发光材料中稀土元素的使用量，降低发光材料的成本,并且该核壳结构材料密度相对较低,易于分散在有机溶剂或者水中,在药物释放和多功能生物标记等方面有着潜在的应用价值.
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| 关 键 词： | 介孔纳米粒子 核壳结构 近红外发光 荧光 |
| 收稿时间： | 2010-10-18 |
Luminescence and Near-infrared Emission of Rare Earth Core-shell Nanomaterials Synthesized via Mesoporous Silica Nanoparticles as Template |
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| ZHANG Dao-Jun,FAN Zhi-Qiang,ZHANG Wen,WANG Xue-Min,LIU Yun-ling,HUO Qi-Sheng.Luminescence and Near-infrared Emission of Rare Earth Core-shell Nanomaterials Synthesized via Mesoporous Silica Nanoparticles as Template[J].Chemical Research In Chinese Universities,2011,32(3):609-612. |
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| Authors: | ZHANG Dao-Jun FAN Zhi-Qiang ZHANG Wen WANG Xue-Min LIU Yun-ling HUO Qi-Sheng |
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| Institution: | State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, China |
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| Abstract: | We have utilized a homogeneous precipitation method to fabricate core-shell Y2O3∶Er, Eu nanomaterials with colloidal mesoporous silica nanoparticles as templates followed by heat treatment at 800 ℃, and the luminescence properties of the as-synthesized nanomaterials have been investigated in detail. The core-shell nanoparticles exhibit properties of photoluminescence and near-infrared(NIR) luminescence. And Y2O3 is a promising host matrix for downconversion and NIR luminescence due to its good chemical, thermal stability and low phonon energy. The core-shell nanoparticles may have some advantages for potential applications in drug delivery or optical imaging. |
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