Infrared photothermal deflection spectroscopy: A new probe for the investigation of electrochemical interfaces
Date Published |
05/1996
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Publication Type | Journal Article
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Authors | |
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DOI |
10.1149/1.1836672
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Abstract |
An infrared photothermal deflection spectroscopy system has been developed using infrared tunable diode lasers in the wavelength region from 8 to 16 μm. This system allows the collection of in situ optical absorption spectra of species at electrode/electrolyte interfaces in an electrochemical cell. The infrared spectra of LiOH and Li2CO3 formed on the surface of a lithium foil were recorded. The infrared photothermal deflection spectroscopy technique has been used to monitor the lithium electrode surface in an operating cell, Li/P(EO)8LiN(CF3SO2)2/Ni. The in situ spectra (in the 800-1000cm-1 region) show that the film formation at Li/polymer electrolyte interfaces is dominated by LiOH, although there also appears to be organic species in the surface film. |
Journal |
Journal of the Electrochemical Society
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Volume |
143
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Year of Publication |
1996
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Issue |
5
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Number |
5
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Pagination |
1514-1521
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Keywords | |
Organizations | |
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