Molecular adsorbates under high pressure: A study using surface-enhanced Raman scattering spectroscopy

Y. Fu; J. M. Christensen; D. D. Dlott

doi:10.1088/1742-6596/500/12/122004

Molecular adsorbates under high pressure: A study using surface-enhanced Raman scattering spectroscopy

Y. Fu, J. M. Christensen, D. D. Dlott

Research output: Contribution to journal › Conference article › peer-review

Abstract

Molecules adsorbed on metal surfaces were studied in a diamond anvil cell with Ar pressure-transmission medium up to several GPa pressure using Raman spectroscopy. The problem with studying molecules on surfaces is the small number density. This problem was overcome using photonic substrates to amplify the Raman intensity by factors of 10⁶ in the case of self-assembled monolayers on Ag-coated nanoarrays, where the probed region contained ∼10⁹ molecules, and >10⁹ in the case of the dye Rhodamine 6G on Ag nanoaggregates, where <10⁶ molecules were probed. Pressure effects on the adsorbate vibrations and on the underlying nanostructures are discussed.

Original language	English (US)
Article number	122004
Journal	Journal of Physics: Conference Series
Volume	500
Issue number	PART 12
DOIs	https://doi.org/10.1088/1742-6596/500/12/122004
State	Published - 2014
Event	18th Biennial Int. Conf. of the APS Topical Group on Shock Compression of Condensed Matter, APS-SCCM 2013 in Conjunction with the 24th Biennial Int. Conf. of the Int. Association for the Advancement of High Pressure Science and Technol., AIRAPT 2013 - Seattle, WA, United States Duration: Jul 7 2013 → Jul 12 2013

ASJC Scopus subject areas

General Physics and Astronomy

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10.1088/1742-6596/500/12/122004

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title = "Molecular adsorbates under high pressure: A study using surface-enhanced Raman scattering spectroscopy",

abstract = "Molecules adsorbed on metal surfaces were studied in a diamond anvil cell with Ar pressure-transmission medium up to several GPa pressure using Raman spectroscopy. The problem with studying molecules on surfaces is the small number density. This problem was overcome using photonic substrates to amplify the Raman intensity by factors of 106 in the case of self-assembled monolayers on Ag-coated nanoarrays, where the probed region contained ∼109 molecules, and >109 in the case of the dye Rhodamine 6G on Ag nanoaggregates, where <106 molecules were probed. Pressure effects on the adsorbate vibrations and on the underlying nanostructures are discussed.",

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TY - JOUR

T1 - Molecular adsorbates under high pressure

T2 - 18th Biennial Int. Conf. of the APS Topical Group on Shock Compression of Condensed Matter, APS-SCCM 2013 in Conjunction with the 24th Biennial Int. Conf. of the Int. Association for the Advancement of High Pressure Science and Technol., AIRAPT 2013

AU - Fu, Y.

AU - Christensen, J. M.

AU - Dlott, D. D.

PY - 2014

Y1 - 2014

N2 - Molecules adsorbed on metal surfaces were studied in a diamond anvil cell with Ar pressure-transmission medium up to several GPa pressure using Raman spectroscopy. The problem with studying molecules on surfaces is the small number density. This problem was overcome using photonic substrates to amplify the Raman intensity by factors of 106 in the case of self-assembled monolayers on Ag-coated nanoarrays, where the probed region contained ∼109 molecules, and >109 in the case of the dye Rhodamine 6G on Ag nanoaggregates, where <106 molecules were probed. Pressure effects on the adsorbate vibrations and on the underlying nanostructures are discussed.

AB - Molecules adsorbed on metal surfaces were studied in a diamond anvil cell with Ar pressure-transmission medium up to several GPa pressure using Raman spectroscopy. The problem with studying molecules on surfaces is the small number density. This problem was overcome using photonic substrates to amplify the Raman intensity by factors of 106 in the case of self-assembled monolayers on Ag-coated nanoarrays, where the probed region contained ∼109 molecules, and >109 in the case of the dye Rhodamine 6G on Ag nanoaggregates, where <106 molecules were probed. Pressure effects on the adsorbate vibrations and on the underlying nanostructures are discussed.

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DO - 10.1088/1742-6596/500/12/122004

M3 - Conference article

AN - SCOPUS:84902313287

SN - 1742-6588

VL - 500

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

IS - PART 12

M1 - 122004

Y2 - 7 July 2013 through 12 July 2013

ER -

Molecular adsorbates under high pressure: A study using surface-enhanced Raman scattering spectroscopy

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