Rapid fabrication of three-dimensional flower-like gold microstructures on flexible substrate for SERS applications

Sichen Lu; Tingting You; Yukun Gao; Nan Yang; Chenmeng Zhang; Penggang Yin

doi:10.1016/j.saa.2019.01.018

Rapid fabrication of three-dimensional flower-like gold microstructures on flexible substrate for SERS applications

Sichen Lu
, Tingting You^*
, Yukun Gao
, Nan Yang
, Chenmeng Zhang
, Penggang Yin

^*Corresponding author for this work

School of Chemistry

Beihang University

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

28 Scopus citations

Abstract

In this work, hierarchical flower-like gold microstructures (HFGMs) are synthesized on a flexible PET film substrate by electrochemical deposition method as a SERS sensor without surfactant or directing agent. The effects of deposition current and electrolyte concentration on morphology and SERS performance are discussed to find the optimal preparation conditions. SERS activity of samples with different morphologies was investigated by comparing experiments and the mechanism was discussed. It shows the HFGMs with 3D nanoflakes and nanosheet tips present outstanding SERS activity with ultrasensitive detection limits. The lowest concentration of R6G that can be detected is 10 ⁻¹⁰ M, and the characteristic signals of thiram can be detected as low as 0.1 ppm. The HFGMs substrate show great potential of application in trace detection by SERS.

Original language	English
Pages (from-to)	371-379
Number of pages	9
Journal	Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy
Volume	212
DOIs	https://doi.org/10.1016/j.saa.2019.01.018
State	Published - 5 Apr 2019

Keywords

Electrochemical deposition
Finite difference time domain
Flower-like gold microstructures
Surface enhanced Raman scattering

Access to Document

10.1016/j.saa.2019.01.018

Cite this

@article{15e4d382c8de4ceea090eff38fbe411d,

title = "Rapid fabrication of three-dimensional flower-like gold microstructures on flexible substrate for SERS applications",

abstract = " In this work, hierarchical flower-like gold microstructures (HFGMs) are synthesized on a flexible PET film substrate by electrochemical deposition method as a SERS sensor without surfactant or directing agent. The effects of deposition current and electrolyte concentration on morphology and SERS performance are discussed to find the optimal preparation conditions. SERS activity of samples with different morphologies was investigated by comparing experiments and the mechanism was discussed. It shows the HFGMs with 3D nanoflakes and nanosheet tips present outstanding SERS activity with ultrasensitive detection limits. The lowest concentration of R6G that can be detected is 10 −10 M, and the characteristic signals of thiram can be detected as low as 0.1 ppm. The HFGMs substrate show great potential of application in trace detection by SERS.",

keywords = "Electrochemical deposition, Finite difference time domain, Flower-like gold microstructures, Surface enhanced Raman scattering",

author = "Sichen Lu and Tingting You and Yukun Gao and Nan Yang and Chenmeng Zhang and Penggang Yin",

note = "Publisher Copyright: {\textcopyright} 2019",

year = "2019",

month = apr,

day = "5",

doi = "10.1016/j.saa.2019.01.018",

language = "英语",

volume = "212",

pages = "371--379",

journal = "Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy",

issn = "1386-1425",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Rapid fabrication of three-dimensional flower-like gold microstructures on flexible substrate for SERS applications

AU - Lu, Sichen

AU - You, Tingting

AU - Gao, Yukun

AU - Yang, Nan

AU - Zhang, Chenmeng

AU - Yin, Penggang

PY - 2019/4/5

Y1 - 2019/4/5

N2 - In this work, hierarchical flower-like gold microstructures (HFGMs) are synthesized on a flexible PET film substrate by electrochemical deposition method as a SERS sensor without surfactant or directing agent. The effects of deposition current and electrolyte concentration on morphology and SERS performance are discussed to find the optimal preparation conditions. SERS activity of samples with different morphologies was investigated by comparing experiments and the mechanism was discussed. It shows the HFGMs with 3D nanoflakes and nanosheet tips present outstanding SERS activity with ultrasensitive detection limits. The lowest concentration of R6G that can be detected is 10 −10 M, and the characteristic signals of thiram can be detected as low as 0.1 ppm. The HFGMs substrate show great potential of application in trace detection by SERS.

AB - In this work, hierarchical flower-like gold microstructures (HFGMs) are synthesized on a flexible PET film substrate by electrochemical deposition method as a SERS sensor without surfactant or directing agent. The effects of deposition current and electrolyte concentration on morphology and SERS performance are discussed to find the optimal preparation conditions. SERS activity of samples with different morphologies was investigated by comparing experiments and the mechanism was discussed. It shows the HFGMs with 3D nanoflakes and nanosheet tips present outstanding SERS activity with ultrasensitive detection limits. The lowest concentration of R6G that can be detected is 10 −10 M, and the characteristic signals of thiram can be detected as low as 0.1 ppm. The HFGMs substrate show great potential of application in trace detection by SERS.

KW - Electrochemical deposition

KW - Finite difference time domain

KW - Flower-like gold microstructures

KW - Surface enhanced Raman scattering

UR - https://www.scopus.com/pages/publications/85060093704

U2 - 10.1016/j.saa.2019.01.018

DO - 10.1016/j.saa.2019.01.018

M3 - 文章

C2 - 30669101

AN - SCOPUS:85060093704

SN - 1386-1425

VL - 212

SP - 371

EP - 379

JO - Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy

JF - Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy

ER -

Rapid fabrication of three-dimensional flower-like gold microstructures on flexible substrate for SERS applications

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this