Potential modulated attenuated total reflectance spectroscopy of prussian blue films on ITO

Zeynap Ozkan Araci; Anne F. Runge; Walter J. Doherty; S. Scott Saavedra

doi:10.1560/ijc_46_3_249

Potential modulated attenuated total reflectance spectroscopy of prussian blue films on ITO

Zeynap Ozkan Araci
, Anne F. Runge
, Walter J. Doherty
, S. Scott Saavedra

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

11 Scopus citations

Abstract

Potential modulated attenuated total reflectance (PM-ATR) spectroscopy has been employed to study charge transfer processes in Prussian blue (PB) films deposited on indium tin oxide (ITO) electrodes. PM-ATR is a planar waveguide-based spectroelectrochemical technique in which the optical response of an electroactive film is measured as a function of applied potential and modulation frequency. The multiple internal reflection geometry of PM-ATR provides a significant sensitivity advantage over the single external reflectance geometry that has been employed in most prior electroreflectance studies. The apparent electron transfer rate of PB on ITO obtained using PM-ATR was compared to that obtained with conventional cyclic voltammetry; the respective rates, 0.33 ± 0.15 s^-1 (n = 3) and 0.71 ± 0.37 s^-1 (n = 10), are in good agreement.

Original language	English (US)
Pages (from-to)	249-255
Number of pages	7
Journal	Israel Journal of Chemistry
Volume	46
Issue number	3
DOIs	https://doi.org/10.1560/ijc_46_3_249
State	Published - 2006
Externally published	Yes

ASJC Scopus subject areas

General Chemistry

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title = "Potential modulated attenuated total reflectance spectroscopy of prussian blue films on ITO",

abstract = "Potential modulated attenuated total reflectance (PM-ATR) spectroscopy has been employed to study charge transfer processes in Prussian blue (PB) films deposited on indium tin oxide (ITO) electrodes. PM-ATR is a planar waveguide-based spectroelectrochemical technique in which the optical response of an electroactive film is measured as a function of applied potential and modulation frequency. The multiple internal reflection geometry of PM-ATR provides a significant sensitivity advantage over the single external reflectance geometry that has been employed in most prior electroreflectance studies. The apparent electron transfer rate of PB on ITO obtained using PM-ATR was compared to that obtained with conventional cyclic voltammetry; the respective rates, 0.33 ± 0.15 s-1 (n = 3) and 0.71 ± 0.37 s-1 (n = 10), are in good agreement.",

author = "Araci, \{Zeynap Ozkan\} and Runge, \{Anne F.\} and Doherty, \{Walter J.\} and Saavedra, \{S. Scott\}",

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language = "English (US)",

volume = "46",

pages = "249--255",

journal = "Israel Journal of Chemistry",

issn = "0021-2148",

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TY - JOUR

T1 - Potential modulated attenuated total reflectance spectroscopy of prussian blue films on ITO

AU - Araci, Zeynap Ozkan

AU - Runge, Anne F.

AU - Doherty, Walter J.

AU - Saavedra, S. Scott

PY - 2006

Y1 - 2006

N2 - Potential modulated attenuated total reflectance (PM-ATR) spectroscopy has been employed to study charge transfer processes in Prussian blue (PB) films deposited on indium tin oxide (ITO) electrodes. PM-ATR is a planar waveguide-based spectroelectrochemical technique in which the optical response of an electroactive film is measured as a function of applied potential and modulation frequency. The multiple internal reflection geometry of PM-ATR provides a significant sensitivity advantage over the single external reflectance geometry that has been employed in most prior electroreflectance studies. The apparent electron transfer rate of PB on ITO obtained using PM-ATR was compared to that obtained with conventional cyclic voltammetry; the respective rates, 0.33 ± 0.15 s-1 (n = 3) and 0.71 ± 0.37 s-1 (n = 10), are in good agreement.

AB - Potential modulated attenuated total reflectance (PM-ATR) spectroscopy has been employed to study charge transfer processes in Prussian blue (PB) films deposited on indium tin oxide (ITO) electrodes. PM-ATR is a planar waveguide-based spectroelectrochemical technique in which the optical response of an electroactive film is measured as a function of applied potential and modulation frequency. The multiple internal reflection geometry of PM-ATR provides a significant sensitivity advantage over the single external reflectance geometry that has been employed in most prior electroreflectance studies. The apparent electron transfer rate of PB on ITO obtained using PM-ATR was compared to that obtained with conventional cyclic voltammetry; the respective rates, 0.33 ± 0.15 s-1 (n = 3) and 0.71 ± 0.37 s-1 (n = 10), are in good agreement.

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DO - 10.1560/ijc_46_3_249

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EP - 255

JO - Israel Journal of Chemistry

JF - Israel Journal of Chemistry

IS - 3

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Potential modulated attenuated total reflectance spectroscopy of prussian blue films on ITO

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