| 帽状铜纳米粒子的制备及表面增强拉曼散射活性研究 |
| Preparation and Surface-Enhanced Raman Scattering Activities of Cap-shaped Copper Nanoparticles |
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| 摘要: 采用真空热蒸发法在SiO2纳米粒子自组装单层膜上沉积铜薄膜制备了帽状铜纳米粒子。用扫描电镜、原子力显微镜和紫外-可见-近红外分光光度计对帽状复合纳米粒子的表面形貌和光学性质进行了表征。以亚甲基蓝和吡啶-(2-偶氮-4)间苯二酚为探针分子，研究了该复合纳米粒子的表面增强拉曼散射(SERS)活性。通过比较吸附在不同基底上的吡啶-(2-偶氮-4)间苯二酚的谱峰强度，探讨了SERS效应与表面等离子体共振(SPR)的关系。 |
| 关键词: SiO2纳米粒子 帽状铜纳米粒子 表面等离子体共振 表面增强拉曼散射 |
| 基金项目: |
| Abstract: Cap-shaped copper nanoparticles were prepared with vacuum thermal evaporation method by depositing Cu films onto the self-assembled monolayer arrays of SiO2 nanoparticles. The surface morphologies and optical properties of the cap-shaped composite nanoparticles were characterized by SEM, AFM, and UV-Vis-NIR spectrophotometer. The surface-enhanced Raman scattering(SERS) activities of the composite nanoparticles were investigated using methylene blue and 4-(2-pyridylazo)resorcinol as probe molecules. The relationship between the SERS effect and the surface plasmon resonance(SPR) was discussed by comparing the band relative intensity of 4-(2-pyridylazo)resorcinol absorbed on the different substrates. |
| Keywords: SiO2 nanoparticles cap-shaped copper nanoparticles surface plasmon resonance surface-enhanced Raman scattering |
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| 满石清,肖桂娜.帽状铜纳米粒子的制备及表面增强拉曼散射活性研究[J].无机化学学报,2009,25(7):1279-1283. |
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