Hybrid structures of Fe3O4 and Ag nanoparticles on Si nanopillar arrays substrate for SERS applications

Zhao, Xin-Yan1; Wang, Guannan2; Hong, Minghui2

2018-08

10.1016/j.matchemphys.2018.04.082

MATERIALS CHEMISTRY AND PHYSICS   影响因子和分区

0254-0584

1879-3312

Surface-enhanced Raman scattering (SERS)-based sensing is the most promising approach to detect trace amounts of chemical and biological molecules. Three-dimensional (3D) nanostructures have been considered as one of the most promising SERS substrates due to ordered arrangement of high-density hot spots and large surface area for adsorbing analyte. This paper designed a hybrid SERS substrate containing structures of Fe3O4 and Ag nanoparticles on Si nanopillar arrays, which combines the advantages of highly ordered periodic 3D Si nanopillar arrays and Ag coated Fe3O4 core-satellite micro spheres, leading to intense light metal and light molecule interactions. The detection limit of the substrate for malachite green (MG) is as low as 10(-8) M, meeting the requirements for trace detection of analytes. This work provides a new insight for fabricating SERS substrates with high sensitivity. (C) 2018 Elsevier B.V. All rights reserved.

Surface-enhanced Raman scattering (SERS) Three-dimensional (3D) nanostructure Si nanopillar arrays Core-satellite Fe3O4

SCI ; EI

英语

第一

A*STAR, SERC Public Sector Research Funding (PSF) Grant (SERC Project)[1421200080]

Materials Science

Materials Science, Multidisciplinary

WOS:000437068400045

ELSEVIER SCIENCE SA

20182505336189

Iron oxides ; Magnetite ; Metal nanoparticles ; Molecules ; Raman scattering ; Silicon ; Silver nanoparticles ; Surface scattering ; Trace analysis

Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals:549.3 ; Light/Optics:741.1 ; Nanotechnology:761 ; Chemistry:801 ; Inorganic Compounds:804.2 ; Classical Physics; Quantum Theory; Relativity:931 ; Atomic and Molecular Physics:931.3

MATERIALS SCIENCE

Web of Science

1.Southern Univ Sci & Technol, SUSTech Acad Adv Interdisciplinary Studies, Shenzhen 518055, Peoples R China
2.Natl Univ Singapore, Dept Elect & Comp Engn, 4 Engn Dr 3, Singapore 117576, Singapore

Zhao, Xin-Yan,Wang, Guannan,Hong, Minghui. Hybrid structures of Fe3O4 and Ag nanoparticles on Si nanopillar arrays substrate for SERS applications[J]. MATERIALS CHEMISTRY AND PHYSICS,2018,214:377-382.

Zhao, Xin-Yan,Wang, Guannan,&Hong, Minghui.(2018).Hybrid structures of Fe3O4 and Ag nanoparticles on Si nanopillar arrays substrate for SERS applications.MATERIALS CHEMISTRY AND PHYSICS,214,377-382.

Zhao, Xin-Yan,et al."Hybrid structures of Fe3O4 and Ag nanoparticles on Si nanopillar arrays substrate for SERS applications".MATERIALS CHEMISTRY AND PHYSICS 214(2018):377-382.