1 Research Scholar, Department of Physics, Sri Venkateshwara College of Engineering, Sriperumbudur 602105, Tamil Nadu, India
2 Department of Physics, Sri Venkateswara College of Engineering, Sriperumbudur 602105, Tamil Nadu, India
3 Department of Physics, Dhanalakshmi College of Engineering, Tambaram, Chennai, Tamil Nadu, India
1 Research Scholar, Department of Physics, Sri Venkateshwara College of Engineering, Sriperumbudur 602105, Tamil Nadu, India
2 Department of Physics, Sri Venkateswara College of Engineering, Sriperumbudur 602105, Tamil Nadu, India
3 Department of Physics, Dhanalakshmi College of Engineering, Tambaram, Chennai, Tamil Nadu, India
光谱学与光谱分析
2017, 37(9): 2984
1 Department of Physics, Sri Lakshmi Ammaal Engineering College, Chennai, Tamil Nadu, India
2 Department of Physics, Sri Venkateswara College of Engineering, Sriperumbudur 602105 Tamil Nadu, India
3 Research Scholar, Department of Physics, Sri Venkateshwara College of Engineering, Sriperumbudur 602105, Tamil Nadu, India
光谱学与光谱分析
2016, 36(4): 1273
1 郑州大学物理工程学院 材料物理实验室, 郑州 450052
2 河南理工大学物理化学系, 焦作 454000
以硅纳米孔柱阵列(Si-NPA)为衬底, 采用浸渍法制备出一种具有规则表面形貌特征的银/硅纳米孔柱阵列(Ag/Si-NPA), 并以R6G为探测目标材料, 对其表面增强拉曼(SERS)效应进行了研究。结果表明, 对于R6G浓度低至10-15 M, Ag/Si-NPA均能表现出清晰的特征SERS峰。随着浓度的降低, R6G的荧光淬灭, 所测拉曼光谱的基线降低, 但特征峰峰位基本保持不变。在低浓度10-15 M时得到的SERS光谱, 理论上证明为单分子光谱。此外, Ag/Si-NPA活性基底具有较好的稳定性, 在长达28天的自然老化过程中, Ag/Si-NPA能够保持对R6G较高的探测水平, 光谱具有较好的信噪比和分辨率。Ag/Si-NPA是一种理想的SERS活性基底。
表面增强拉曼散射(SERS) 硅纳米孔柱阵列(Si-NPA) 浸渍技术 surface-enhanced Raman scattering (SERS) silicon nanoporous pillar array (Si-NPA) immersion plating Ag/Si-NPA Ag/Si-NPA
