SERS Characterization of Naturally Grown Ag Nanoparticles as Chemical Sensor Surface for Trace PAH Detection in Water

Yong-Hyok Kwon, Ung-Yong Choe, Myong-Hun Ri, Yong-Sik Ri, Kuichuan Sheng

Abstract

We present experimental results to characterize the naturally grown silver nanoparticle ensemble as SERS sensor surface. Ag nanoparticle ensembles with different plasmon resonance wavelengths were characterized with respect to the morphology of silver nanoparticles. The best Raman enhancement of a Ag spheroid nanoparticle in SERS substrate is expected to be obtained at a plasmon resonance position between excitation wavelength and Raman scattering wavelength. A SERS sensor requires a certain response time to react the PAH concentration change in water. SERS measurement also revealed that the oxide layer was formed on Ag nanoparticle surface by the exposure to excitation laser light, which is a main reason to decrease SERS intensity within a certain time after the exposure to laser light and afterwards remain unaltered.

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Paper Citation


in Harvard Style

Kwon Y., Choe U., Ri M., Ri Y. and Sheng K. (2018). SERS Characterization of Naturally Grown Ag Nanoparticles as Chemical Sensor Surface for Trace PAH Detection in Water.In Proceedings of the International Workshop on Environment and Geoscience - Volume 1: IWEG, ISBN 978-989-758-342-1, pages 68-75. DOI: 10.5220/0007425900680075


in Bibtex Style

@conference{iweg18,
author={Yong-Hyok Kwon and Ung-Yong Choe and Myong-Hun Ri and Yong-Sik Ri and Kuichuan Sheng},
title={SERS Characterization of Naturally Grown Ag Nanoparticles as Chemical Sensor Surface for Trace PAH Detection in Water},
booktitle={Proceedings of the International Workshop on Environment and Geoscience - Volume 1: IWEG,},
year={2018},
pages={68-75},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0007425900680075},
isbn={978-989-758-342-1},
}


in EndNote Style

TY - CONF

JO - Proceedings of the International Workshop on Environment and Geoscience - Volume 1: IWEG,
TI - SERS Characterization of Naturally Grown Ag Nanoparticles as Chemical Sensor Surface for Trace PAH Detection in Water
SN - 978-989-758-342-1
AU - Kwon Y.
AU - Choe U.
AU - Ri M.
AU - Ri Y.
AU - Sheng K.
PY - 2018
SP - 68
EP - 75
DO - 10.5220/0007425900680075