Enhanced morphological stability of silver nanoparticles supported on rough substrates at high temperatures

Ryan D. Scherzer; Lev V. Gasparov; Stephen P. Stagon

doi:10.1049/mnl.2017.0526

Enhanced morphological stability of silver nanoparticles supported on rough substrates at high temperatures

Ryan D. Scherzer, Lev V. Gasparov, Stephen P. Stagon

University of North Florida

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

Abstract

Noble metal nanostructures serve as excellent substrates for the detection of trace amounts of substances in surface enhanced Raman spectroscopy, but they have not found widespread commercial use due to their instability and short shelf lives. This work demonstrates that silver nanoparticles grown onto substrates with nanoscale roughness, using glancing angle physical vapour deposition and subsequently thermally annealed at 500°C to generate a stable lower energy configuration, exhibit Raman enhancements that are strong and remain stable with no drop over 30 days. These nanoparticle arrays may serve as time stable substrates for commercial scale Raman spectroscopy or may be employed in harsh environments.

Original language	American English
Pages (from-to)	498-501
Number of pages	4
Journal	Micro & Nano Letters
Volume	13
Issue number	4
DOIs	https://doi.org/10.1049/mnl.2017.0526
State	Published - Jan 2 2018

Keywords

nanoparticles
silver
high-temperature effects
nanofabrication
annealing
Rama spectra
rough surfaces
surface roughness
surface morphology
morphological stability
silver nanoparticles
rough substrates
nanoscale roughness
glancing angle physical vapour deposition
thermal annealing
stable lower energy configuration
Raman enhancements
nanoparticle arrays
high temperature effect
temperature 500 degC
Ag

Disciplines

Materials Science and Engineering
Analytical Chemistry
Inorganic Chemistry

Access to Document

10.1049/mnl.2017.0526License: Unspecified

Cite this

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title = "Enhanced morphological stability of silver nanoparticles supported on rough substrates at high temperatures",

abstract = "Noble metal nanostructures serve as excellent substrates for the detection of trace amounts of substances in surface enhanced Raman spectroscopy, but they have not found widespread commercial use due to their instability and short shelf lives. This work demonstrates that silver nanoparticles grown onto substrates with nanoscale roughness, using glancing angle physical vapour deposition and subsequently thermally annealed at 500°C to generate a stable lower energy configuration, exhibit Raman enhancements that are strong and remain stable with no drop over 30 days. These nanoparticle arrays may serve as time stable substrates for commercial scale Raman spectroscopy or may be employed in harsh environments.",

keywords = "nanoparticles, silver, high-temperature effects, nanofabrication, annealing, Rama spectra, rough surfaces, surface roughness, surface morphology, morphological stability, silver nanoparticles, rough substrates, nanoscale roughness, glancing angle physical vapour deposition, thermal annealing, stable lower energy configuration, Raman enhancements, nanoparticle arrays, high temperature effect, temperature 500 degC, Ag",

author = "Scherzer, {Ryan D.} and Gasparov, {Lev V.} and Stagon, {Stephen P.}",

note = "Scherzer, R.D., Gasparov, L.V. and Stagon, S.P. (2018), Enhanced morphological stability of silver nanoparticles supported on rough substrates at high temperatures. Micro Nano Lett., 13: 498-501. https://doi.org/10.1049/mnl.2017.0526",

year = "2018",

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doi = "10.1049/mnl.2017.0526",

language = "American English",

volume = "13",

pages = "498--501",

journal = "Micro & Nano Letters",

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TY - JOUR

T1 - Enhanced morphological stability of silver nanoparticles supported on rough substrates at high temperatures

AU - Scherzer, Ryan D.

AU - Gasparov, Lev V.

AU - Stagon, Stephen P.

N1 - Scherzer, R.D., Gasparov, L.V. and Stagon, S.P. (2018), Enhanced morphological stability of silver nanoparticles supported on rough substrates at high temperatures. Micro Nano Lett., 13: 498-501. https://doi.org/10.1049/mnl.2017.0526

PY - 2018/1/2

Y1 - 2018/1/2

N2 - Noble metal nanostructures serve as excellent substrates for the detection of trace amounts of substances in surface enhanced Raman spectroscopy, but they have not found widespread commercial use due to their instability and short shelf lives. This work demonstrates that silver nanoparticles grown onto substrates with nanoscale roughness, using glancing angle physical vapour deposition and subsequently thermally annealed at 500°C to generate a stable lower energy configuration, exhibit Raman enhancements that are strong and remain stable with no drop over 30 days. These nanoparticle arrays may serve as time stable substrates for commercial scale Raman spectroscopy or may be employed in harsh environments.

AB - Noble metal nanostructures serve as excellent substrates for the detection of trace amounts of substances in surface enhanced Raman spectroscopy, but they have not found widespread commercial use due to their instability and short shelf lives. This work demonstrates that silver nanoparticles grown onto substrates with nanoscale roughness, using glancing angle physical vapour deposition and subsequently thermally annealed at 500°C to generate a stable lower energy configuration, exhibit Raman enhancements that are strong and remain stable with no drop over 30 days. These nanoparticle arrays may serve as time stable substrates for commercial scale Raman spectroscopy or may be employed in harsh environments.

KW - nanoparticles

KW - silver

KW - high-temperature effects

KW - nanofabrication

KW - annealing

KW - Rama spectra

KW - rough surfaces

KW - surface roughness

KW - surface morphology

KW - morphological stability

KW - silver nanoparticles

KW - rough substrates

KW - nanoscale roughness

KW - glancing angle physical vapour deposition

KW - thermal annealing

KW - stable lower energy configuration

KW - Raman enhancements

KW - nanoparticle arrays

KW - high temperature effect

KW - temperature 500 degC

KW - Ag

U2 - 10.1049/mnl.2017.0526

DO - 10.1049/mnl.2017.0526

M3 - Article

SN - 1750-0443

VL - 13

SP - 498

EP - 501

JO - Micro & Nano Letters

JF - Micro & Nano Letters

IS - 4

ER -