Nanostructured grating patterns over a large area fabricated by optically directed assembly

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	Nanostructured grating patterns over a large area fabricated by optically directed assembly
	Huang, Xiaoping 1; Chen, Kai 1; Qi, Mingxi 1; Li, Yu 1; Hou, Yumeng 1; Wang, Ying 1; Zhao, Qing 1; Luo, Xiangang 2; Xu, Qingyu 3
刊名	NANOSCALE
	2016
卷号	8 期号:27 页码:13342-13351
ISSN号	2040-3364
英文摘要	Optical trapping and manipulation of nanoparticles (NPs) have been widely used in nanotechnology and biology. Here, we demonstrate an optically directed assembly (ODA) route for bottom-up fabrication of stable nanostructured grating patterns in solution using laser standing evanescent wave (LSEW) fields. The control mechanism is the intriguing cooperative action of the periodically line-centered attractive optical gradient force and the near field dipolar coupling force induced by LSEW, which leads to assembly of the colloidal silver NPs into robust grating patterns within minutes. The anisotropic polarization nature of the grating patterns was studied further by examining the morphology correlation of the surface-enhanced Raman scattering (SERS)-based signal amplification. We show the LSEW ODA method can optimize and stabilize the strongest dipolar coupling style among the NPs during pattern assembly. These results advance the further understanding of ODA of colloid NPs and might have many potential applications in SERS, catalysis, nanophotonics and nano-fabrication.
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
研究领域[WOS]	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
关键词[WOS]	ENHANCED RAMAN-SCATTERING ; PHOTOVOLTAIC DEVICES ; RADIATION PRESSURE ; MANIPULATION ; PARTICLES ; ARRAYS ; NANOPARTICLES ; NANOSPHERES ; PLASMONICS ; ENERGY
收录类别	SCI
语种	英语
WOS记录号	WOS:000379489000028
内容类型	期刊论文
源URL	[http://ir.ioe.ac.cn/handle/181551/3915]
专题	光电技术研究所_光电技术研究所被WoS收录文章
作者单位	1.Univ Elect Sci & Technol China, Sch Phys Elect, Chengdu 610054, Peoples R China 2.Chinese Acad Sci, Inst Opt & Elect, State Key Lab Opt Technol Nanofabricat & Microeng, Chengdu 610209, Peoples R China 3.Southeast Univ, Dept Phys, Nanjing 211189, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Huang, Xiaoping,Chen, Kai,Qi, Mingxi,et al. Nanostructured grating patterns over a large area fabricated by optically directed assembly[J]. NANOSCALE,2016,8(27):13342-13351.
APA	Huang, Xiaoping.,Chen, Kai.,Qi, Mingxi.,Li, Yu.,Hou, Yumeng.,...&Xu, Qingyu.(2016).Nanostructured grating patterns over a large area fabricated by optically directed assembly.NANOSCALE,8(27),13342-13351.
MLA	Huang, Xiaoping,et al."Nanostructured grating patterns over a large area fabricated by optically directed assembly".NANOSCALE 8.27(2016):13342-13351.