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Title: Degradation Mechanism of Ag Nanorods for Surface Enhanced Raman Spectroscopy

Abstract

This paper reports a degradation mechanism of silver (Ag) nanorods that are used as substrates for surface enhanced Raman spectroscopy (SERS). The attachment of sulfur and hydrocarbons to the surfaces of Ag nanorods is observed when they are stored in ambient over four months. This attachment is observed to correlate with ~20% decrease in SERS signal. The attachment, and thereby the signal degradation, takes three weeks to complete, and remains stable after the initial decay over the rest of the four month test period. While this degradation mechanism is a limitation to the gross enhancement, the ensuing stability beyond three weeks is encouraging.

Authors:
 [1];  [2];  [3];  [2]; ORCiD logo [2];  [3]
  1. Univ. of Connecticut, Storrs, CT (United States)
  2. Univ. of North Florida, Jacksonville, FL (United States)
  3. Northeastern Univ., Boston, MA (United States)
Publication Date:
Research Org.:
Northeastern Univ., Boston, MA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1500020
Grant/Contract Number:  
SC0014035
Resource Type:
Accepted Manuscript
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Volume: 7; Journal Issue: 1; Journal ID: ISSN 2045-2322
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Bachenheimer, Lou, Scherzer, Ryan, Elliott, Paul, Stagon, Stephen, Gasparov, Lev, and Huang, Hanchen. Degradation Mechanism of Ag Nanorods for Surface Enhanced Raman Spectroscopy. United States: N. p., 2017. Web. doi:10.1038/s41598-017-16580-2.
Bachenheimer, Lou, Scherzer, Ryan, Elliott, Paul, Stagon, Stephen, Gasparov, Lev, & Huang, Hanchen. Degradation Mechanism of Ag Nanorods for Surface Enhanced Raman Spectroscopy. United States. doi:10.1038/s41598-017-16580-2.
Bachenheimer, Lou, Scherzer, Ryan, Elliott, Paul, Stagon, Stephen, Gasparov, Lev, and Huang, Hanchen. Fri . "Degradation Mechanism of Ag Nanorods for Surface Enhanced Raman Spectroscopy". United States. doi:10.1038/s41598-017-16580-2. https://www.osti.gov/servlets/purl/1500020.
@article{osti_1500020,
title = {Degradation Mechanism of Ag Nanorods for Surface Enhanced Raman Spectroscopy},
author = {Bachenheimer, Lou and Scherzer, Ryan and Elliott, Paul and Stagon, Stephen and Gasparov, Lev and Huang, Hanchen},
abstractNote = {This paper reports a degradation mechanism of silver (Ag) nanorods that are used as substrates for surface enhanced Raman spectroscopy (SERS). The attachment of sulfur and hydrocarbons to the surfaces of Ag nanorods is observed when they are stored in ambient over four months. This attachment is observed to correlate with ~20% decrease in SERS signal. The attachment, and thereby the signal degradation, takes three weeks to complete, and remains stable after the initial decay over the rest of the four month test period. While this degradation mechanism is a limitation to the gross enhancement, the ensuing stability beyond three weeks is encouraging.},
doi = {10.1038/s41598-017-16580-2},
journal = {Scientific Reports},
number = 1,
volume = 7,
place = {United States},
year = {2017},
month = {11}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

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Cited by: 5 works
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Figures / Tables:

Figure 1 Figure 1: SEM images of Ag nanorods, (a) as deposited, (b) 4 weeks (28 days) later, and (c) 4 months (115 days) later; with the insets showing analogous Au nanorods. The scale bar is 500 nm for all the images and insets.

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Works referenced in this record:

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    Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.