Surface Heterogeneity and Inhomogeneous Broadening of Vibrational Line Profiles

Skandar Taj; Diane Baird; Alexander Rosu-Finsen; Martin R. S. McCoustra

Surface Heterogeneity and Inhomogeneous Broadening of Vibrational Line Profiles

Skandar Taj, Diane Baird, Alexander Rosu-Finsen, Martin R. S. McCoustra

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Abstract

The surface heterogeneity of amorphous silica (aSiO2) has been probed using coverage dependent temperature programmed desorption (TPD) of a simple probe molecule, carbon monoxide (CO). As a proof-of-principle, the resulting distribution of interaction energies is the foundation from which an environmentally broadened vibrational line profile synthesis has been undertaken. These simulations are compared with measured line profiles recorded at 0.1 cm-1 resolution using reflection–absorption infrared spectroscopy (RAIRS). Additional demonstrations of this methodology on solid water and methanol surfaces will be reported.

Original language	English
Publication status	Published - 3 Nov 2017
Event	American Vacuum Society 64th International Symposium and Exhibition - Tampa, Florida, United States Duration: 29 Oct 2017 → 3 Nov 2017

Conference

Conference	American Vacuum Society 64th International Symposium and Exhibition
Country/Territory	United States
City	Tampa, Florida
Period	29/10/17 → 3/11/17

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title = "Surface Heterogeneity and Inhomogeneous Broadening of Vibrational Line Profiles",

abstract = "The surface heterogeneity of amorphous silica (aSiO2) has been probed using coverage dependent temperature programmed desorption (TPD) of a simple probe molecule, carbon monoxide (CO). As a proof-of-principle, the resulting distribution of interaction energies is the foundation from which an environmentally broadened vibrational line profile synthesis has been undertaken. These simulations are compared with measured line profiles recorded at 0.1 cm-1 resolution using reflection–absorption infrared spectroscopy (RAIRS). Additional demonstrations of this methodology on solid water and methanol surfaces will be reported.",

author = "Skandar Taj and Diane Baird and Alexander Rosu-Finsen and McCoustra, {Martin R. S.}",

year = "2017",

month = nov,

day = "3",

language = "English",

note = "American Vacuum Society 64th International Symposium and Exhibition ; Conference date: 29-10-2017 Through 03-11-2017",

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TY - CONF

T1 - Surface Heterogeneity and Inhomogeneous Broadening of Vibrational Line Profiles

AU - Taj, Skandar

AU - Baird, Diane

AU - Rosu-Finsen, Alexander

AU - McCoustra, Martin R. S.

PY - 2017/11/3

Y1 - 2017/11/3

N2 - The surface heterogeneity of amorphous silica (aSiO2) has been probed using coverage dependent temperature programmed desorption (TPD) of a simple probe molecule, carbon monoxide (CO). As a proof-of-principle, the resulting distribution of interaction energies is the foundation from which an environmentally broadened vibrational line profile synthesis has been undertaken. These simulations are compared with measured line profiles recorded at 0.1 cm-1 resolution using reflection–absorption infrared spectroscopy (RAIRS). Additional demonstrations of this methodology on solid water and methanol surfaces will be reported.

AB - The surface heterogeneity of amorphous silica (aSiO2) has been probed using coverage dependent temperature programmed desorption (TPD) of a simple probe molecule, carbon monoxide (CO). As a proof-of-principle, the resulting distribution of interaction energies is the foundation from which an environmentally broadened vibrational line profile synthesis has been undertaken. These simulations are compared with measured line profiles recorded at 0.1 cm-1 resolution using reflection–absorption infrared spectroscopy (RAIRS). Additional demonstrations of this methodology on solid water and methanol surfaces will be reported.

M3 - Paper

T2 - American Vacuum Society 64th International Symposium and Exhibition

Y2 - 29 October 2017 through 3 November 2017

ER -

Surface Heterogeneity and Inhomogeneous Broadening of Vibrational Line Profiles

Abstract

Conference

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