Thickness-dependent surface plasmon resonance of ITO nanoparticles for ITOIn-Sn bilayer structure

doi:10.1088/1361-6528/aa9abe

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	Thickness-dependent surface plasmon resonance of ITO nanoparticles for ITOIn-Sn bilayer structure
	Wei, W. Z.; Hong, R. J.; Jing, M.; Shao, W.; Tao, C. X.; Zhang, D. W.
	2018
发表期刊	Nanotechnology
ISSN	0957-4484
卷号	29 期号:1 页码:10
摘要	Tuning the localized surface plasmon resonance (LSPR) in doped semiconductor nanoparticles (NPs), which represents an important characteristic in LSPR sensor applications, still remains a challenge. Here, indium tin oxide/indium tin alloy (ITO/In-Sn) bilayer films were deposited by electron beam evaporation and the properties, such as the LSPR and surface morphology, were investigated by UV-VIS-NIR double beam spectrophotometer and atomic force microscopy (AFM), respectively. By simply engineering the thickness of ITO/In-Sn NPs without any microstructure fabrications, the LSPR wavelength of ITO NPs can be tuned by a large amount from 858 to 1758 nm. AFM images show that the strong LSPR of ITO NPs is closely related to the enhanced coupling between ITO and In-Sn NPs. Blue shifts of ITO LSPR from 1256 to 1104 nm are also observed in the as-annealed samples due to the higher free carrier concentration. Meanwhile, we also demonstrated that the ITO LSPR in ITO/In-Sn NPs structures has good sensitivity to the surrounding media and stability after 30 d exposure in air, enabling its application prospects in many biosensing devices.
关键词	localized surface plasmon resonance LSPR sensitivity LSPR stability plasmonic materials indium-tin-oxide gold nanoparticles size nanocomposites nanocrystals heterodimers enhancement nanospheres absorption tunability Science & Technology - Other Topics Materials Science Physics
DOI	10.1088/1361-6528/aa9abe
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/181722/61192
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	Wei, W. Z.,Hong, R. J.,Jing, M.,et al. Thickness-dependent surface plasmon resonance of ITO nanoparticles for ITOIn-Sn bilayer structure[J]. Nanotechnology,2018,29(1):10.
APA	Wei, W. Z.,Hong, R. J.,Jing, M.,Shao, W.,Tao, C. X.,&Zhang, D. W..(2018).Thickness-dependent surface plasmon resonance of ITO nanoparticles for ITOIn-Sn bilayer structure.Nanotechnology,29(1),10.
MLA	Wei, W. Z.,et al."Thickness-dependent surface plasmon resonance of ITO nanoparticles for ITOIn-Sn bilayer structure".Nanotechnology 29.1(2018):10.

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