Fabrication, structures and molecule detection of gold films coated on γ-Fe2O3@SiO2 ellipsoid ordered arrays

Xin Zhang; Yongan Niu; Jiupeng Zhao; Yao Li

doi:10.1016/j.colsurfa.2017.01.070

Fabrication, structures and molecule detection of gold films coated on γ-Fe₂O₃@SiO₂ ellipsoid ordered arrays

Xin Zhang
, Yongan Niu^*
, Jiupeng Zhao
, Yao Li

^*Corresponding author for this work

School of Astronautics

Shenyang Institute of Chemical Technology
School of Chemistry and Chemical Engineering, Harbin Institute of Technology

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

Surface-enhanced Raman scattering (SERS) is a high resolution approach for organic molecule detections. Under a controllable magnetic field, γ-Fe₂O₃@SiO₂ ellipsoids could be forced by the solvent evaporation and assembly to shape the γ-Fe₂O₃@SiO₂ ellipsoid ordered arrays. Sputtering the thin gold film onto the ordered arrays, we could fabricate the gold/ellipsoid ordered complex films. The outstanding SERS could be observed using 4-mercaptobenzoic acid (MBA) as the probe molecule, where the detected limit concentration is lower than 10⁻⁷ mol/L.

Original language	English
Pages (from-to)	343-347
Number of pages	5
Journal	Colloids and Surfaces A: Physicochemical and Engineering Aspects
Volume	520
DOIs	https://doi.org/10.1016/j.colsurfa.2017.01.070
State	Published - 5 May 2017

Keywords

Ellipsoids
Interfaces
Ordered arrays
Raman
Sputtering
Thin films

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10.1016/j.colsurfa.2017.01.070

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title = "Fabrication, structures and molecule detection of gold films coated on γ-Fe2O3@SiO2 ellipsoid ordered arrays",

abstract = "Surface-enhanced Raman scattering (SERS) is a high resolution approach for organic molecule detections. Under a controllable magnetic field, γ-Fe2O3@SiO2 ellipsoids could be forced by the solvent evaporation and assembly to shape the γ-Fe2O3@SiO2 ellipsoid ordered arrays. Sputtering the thin gold film onto the ordered arrays, we could fabricate the gold/ellipsoid ordered complex films. The outstanding SERS could be observed using 4-mercaptobenzoic acid (MBA) as the probe molecule, where the detected limit concentration is lower than 10−7 mol/L.",

keywords = "Ellipsoids, Interfaces, Ordered arrays, Raman, Sputtering, Thin films",

author = "Xin Zhang and Yongan Niu and Jiupeng Zhao and Yao Li",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

year = "2017",

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doi = "10.1016/j.colsurfa.2017.01.070",

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TY - JOUR

T1 - Fabrication, structures and molecule detection of gold films coated on γ-Fe2O3@SiO2 ellipsoid ordered arrays

AU - Zhang, Xin

AU - Niu, Yongan

AU - Zhao, Jiupeng

AU - Li, Yao

PY - 2017/5/5

Y1 - 2017/5/5

N2 - Surface-enhanced Raman scattering (SERS) is a high resolution approach for organic molecule detections. Under a controllable magnetic field, γ-Fe2O3@SiO2 ellipsoids could be forced by the solvent evaporation and assembly to shape the γ-Fe2O3@SiO2 ellipsoid ordered arrays. Sputtering the thin gold film onto the ordered arrays, we could fabricate the gold/ellipsoid ordered complex films. The outstanding SERS could be observed using 4-mercaptobenzoic acid (MBA) as the probe molecule, where the detected limit concentration is lower than 10−7 mol/L.

AB - Surface-enhanced Raman scattering (SERS) is a high resolution approach for organic molecule detections. Under a controllable magnetic field, γ-Fe2O3@SiO2 ellipsoids could be forced by the solvent evaporation and assembly to shape the γ-Fe2O3@SiO2 ellipsoid ordered arrays. Sputtering the thin gold film onto the ordered arrays, we could fabricate the gold/ellipsoid ordered complex films. The outstanding SERS could be observed using 4-mercaptobenzoic acid (MBA) as the probe molecule, where the detected limit concentration is lower than 10−7 mol/L.

KW - Ellipsoids

KW - Interfaces

KW - Ordered arrays

KW - Raman

KW - Sputtering

KW - Thin films

UR - https://www.scopus.com/pages/publications/85011581636

U2 - 10.1016/j.colsurfa.2017.01.070

DO - 10.1016/j.colsurfa.2017.01.070

M3 - 文章

AN - SCOPUS:85011581636

SN - 0927-7757

VL - 520

SP - 343

EP - 347

JO - Colloids and Surfaces A: Physicochemical and Engineering Aspects

JF - Colloids and Surfaces A: Physicochemical and Engineering Aspects

ER -

Fabrication, structures and molecule detection of gold films coated on γ-Fe₂O₃@SiO₂ ellipsoid ordered arrays

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Keywords

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