Effects of shape and size on field enhancement of Au nanoparticles on SERS-active substrates

Hui Wen Cheng; Yiming Li; Jung Yen Yang

doi:10.1109/NANO.2010.5697814

Effects of shape and size on field enhancement of Au nanoparticles on SERS-active substrates

Hui Wen Cheng^*, Yiming Li, Jung Yen Yang

^*Corresponding author for this work

Department of Electrical and Computer Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

2 Scopus citations

Abstract

In this work, we study surface enhanced Raman spectroscopy (SERS) active substrates with low background for the detection of Rhodamine 6G. In our experimental evaluations, the surface enhanced Raman scattering signals from the surface substrates with a duration of 12-hour treatment and without treatment are obtained. Through three-dimensional (3D) finite-difference time-domain (FDTD) numerical simulation, we find that the structures with vertical variations of surface have larger field enhancement than that of horizontal variations which implies a strong positive effect on the local field enhancement. Moreover, the field enhancements are sensitive to the diameter and the shape of Au nanoparticles. We further find the 35-nm cubic shape of Au nanoparticle shows relatively larger electric field enhancement than that of spherical one.

Original language	English
Title of host publication	2010 10th IEEE Conference on Nanotechnology, NANO 2010
Pages	732-735
Number of pages	4
DOIs	https://doi.org/10.1109/NANO.2010.5697814
State	Published - 2010
Event	2010 10th IEEE Conference on Nanotechnology, NANO 2010 - Ilsan, Gyeonggi-Do, Korea, Republic of Duration: 17 Aug 2010 → 20 Aug 2010

Publication series

Name	2010 10th IEEE Conference on Nanotechnology, NANO 2010

Conference

Conference	2010 10th IEEE Conference on Nanotechnology, NANO 2010
Country/Territory	Korea, Republic of
City	Ilsan, Gyeonggi-Do
Period	17/08/10 → 20/08/10

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10.1109/NANO.2010.5697814

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@inproceedings{e28715f1748e433fb08fc36a85d5d588,

title = "Effects of shape and size on field enhancement of Au nanoparticles on SERS-active substrates",

abstract = "In this work, we study surface enhanced Raman spectroscopy (SERS) active substrates with low background for the detection of Rhodamine 6G. In our experimental evaluations, the surface enhanced Raman scattering signals from the surface substrates with a duration of 12-hour treatment and without treatment are obtained. Through three-dimensional (3D) finite-difference time-domain (FDTD) numerical simulation, we find that the structures with vertical variations of surface have larger field enhancement than that of horizontal variations which implies a strong positive effect on the local field enhancement. Moreover, the field enhancements are sensitive to the diameter and the shape of Au nanoparticles. We further find the 35-nm cubic shape of Au nanoparticle shows relatively larger electric field enhancement than that of spherical one.",

author = "Cheng, {Hui Wen} and Yiming Li and Yang, {Jung Yen}",

year = "2010",

doi = "10.1109/NANO.2010.5697814",

language = "English",

isbn = "9781424470334",

series = "2010 10th IEEE Conference on Nanotechnology, NANO 2010",

pages = "732--735",

booktitle = "2010 10th IEEE Conference on Nanotechnology, NANO 2010",

note = "2010 10th IEEE Conference on Nanotechnology, NANO 2010 ; Conference date: 17-08-2010 Through 20-08-2010",

}

Cheng, HW, Li, Y & Yang, JY 2010, Effects of shape and size on field enhancement of Au nanoparticles on SERS-active substrates. in 2010 10th IEEE Conference on Nanotechnology, NANO 2010., 5697814, 2010 10th IEEE Conference on Nanotechnology, NANO 2010, pp. 732-735, 2010 10th IEEE Conference on Nanotechnology, NANO 2010, Ilsan, Gyeonggi-Do, Korea, Republic of, 17/08/10. https://doi.org/10.1109/NANO.2010.5697814

Effects of shape and size on field enhancement of Au nanoparticles on SERS-active substrates. / Cheng, Hui Wen; Li, Yiming; Yang, Jung Yen.
2010 10th IEEE Conference on Nanotechnology, NANO 2010. 2010. p. 732-735 5697814 (2010 10th IEEE Conference on Nanotechnology, NANO 2010).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Effects of shape and size on field enhancement of Au nanoparticles on SERS-active substrates

AU - Cheng, Hui Wen

AU - Li, Yiming

AU - Yang, Jung Yen

PY - 2010

Y1 - 2010

N2 - In this work, we study surface enhanced Raman spectroscopy (SERS) active substrates with low background for the detection of Rhodamine 6G. In our experimental evaluations, the surface enhanced Raman scattering signals from the surface substrates with a duration of 12-hour treatment and without treatment are obtained. Through three-dimensional (3D) finite-difference time-domain (FDTD) numerical simulation, we find that the structures with vertical variations of surface have larger field enhancement than that of horizontal variations which implies a strong positive effect on the local field enhancement. Moreover, the field enhancements are sensitive to the diameter and the shape of Au nanoparticles. We further find the 35-nm cubic shape of Au nanoparticle shows relatively larger electric field enhancement than that of spherical one.

AB - In this work, we study surface enhanced Raman spectroscopy (SERS) active substrates with low background for the detection of Rhodamine 6G. In our experimental evaluations, the surface enhanced Raman scattering signals from the surface substrates with a duration of 12-hour treatment and without treatment are obtained. Through three-dimensional (3D) finite-difference time-domain (FDTD) numerical simulation, we find that the structures with vertical variations of surface have larger field enhancement than that of horizontal variations which implies a strong positive effect on the local field enhancement. Moreover, the field enhancements are sensitive to the diameter and the shape of Au nanoparticles. We further find the 35-nm cubic shape of Au nanoparticle shows relatively larger electric field enhancement than that of spherical one.

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U2 - 10.1109/NANO.2010.5697814

DO - 10.1109/NANO.2010.5697814

M3 - Conference contribution

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SN - 9781424470334

T3 - 2010 10th IEEE Conference on Nanotechnology, NANO 2010

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EP - 735

BT - 2010 10th IEEE Conference on Nanotechnology, NANO 2010

T2 - 2010 10th IEEE Conference on Nanotechnology, NANO 2010

Y2 - 17 August 2010 through 20 August 2010

ER -

Effects of shape and size on field enhancement of Au nanoparticles on SERS-active substrates

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