The influence of dielectric environment on the localized surface plasmon resonance of silver-based composite thin films

doi:10.1016/j.optmat.2018.06.019

CIOMP OpenIR

	The influence of dielectric environment on the localized surface plasmon resonance of silver-based composite thin films
	Hong, R. J.; Shao, W.; Sun, W. F.; Deng, C.; Tao, C. X.; Zhang, D. W.
	2018
发表期刊	Optical Materials
ISSN	0925-3467
卷号	83 页码:212-219
摘要	Ag-based thin films with different topography were prepared by annealing process and laser irradiation, respectively. The tunability of localized surface plasmon resonance (LSPR) was realized by adjusting the cover layer thickness of ITO or TiO2. The effect of dielectric environment of Ag-based composite thin films on structure, surface morphology and optical property was investigated by X-ray diffraction (XRD), scanning electron microscope (SEM), atomic force microscopy (AFM), UV-VIS-NIR double beam spectrometer and Raman system, respectively. With the thickness of dielectric layer increasing, the topography of as-irradiated Ag-based thin films became smoother while the as-annealed Ag-based thin films had a rougher surface. LSPR absorption of both ITO/Ag and TiO2/Ag bilayers showed red shift with the thickness of dielectric layer increasing. The electromagnetic field coupling between dielectric layers and Ag thin films contributed to increase significantly the sensitivity of surface enhanced Raman scattering (SERS). Additionally, the result of finite-difference time domain (FDTD) simulation was in good agreement with that of the experiment.
关键词	LSPR Plasmonic materials Optical absorption Raman scattering FDTD optical-properties nanoparticles gold size therapy shape Materials Science Optics
DOI	10.1016/j.optmat.2018.06.019
收录类别	SCI ; EI
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/61181
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Hong, R. J.,Shao, W.,Sun, W. F.,et al. The influence of dielectric environment on the localized surface plasmon resonance of silver-based composite thin films[J]. Optical Materials,2018,83:212-219.
APA	Hong, R. J.,Shao, W.,Sun, W. F.,Deng, C.,Tao, C. X.,&Zhang, D. W..(2018).The influence of dielectric environment on the localized surface plasmon resonance of silver-based composite thin films.Optical Materials,83,212-219.
MLA	Hong, R. J.,et al."The influence of dielectric environment on the localized surface plasmon resonance of silver-based composite thin films".Optical Materials 83(2018):212-219.

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