@article{27645,
  keywords = {electrolytes, lithium, electrochemical electrodes, photothermal spectroscopy, foils, infrared spectroscopy, interface phenomena, probes},
  author = {Zhongyi Deng and Jonathan D Spear and James D Rudnicki and Frank R McLarnon and Elton J Cairns},
  title = {Infrared photothermal deflection spectroscopy: A new probe for the investigation of electrochemical interfaces},
  abstract = {<p>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 <em>in situ</em> optical absorption spectra of species at electrode/electrolyte interfaces in an electrochemical cell. The infrared spectra of LiOH and Li<sub>2</sub>CO<sub>3</sub> 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/<em>P</em>(<em>EO</em>)<sub>8</sub>LiN(<em>CF</em><sub>3</sub><em>SO</em><sub>2</sub>)<sub>2</sub>/Ni. The <em>in situ</em> spectra (in the 800-1000cm<sup>-1</sup> 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.</p>},
  year = {1996},
  journal = {Journal of the Electrochemical Society},
  volume = {143},
  number = {5},
  pages = {1514-1521},
  month = {05/1996},
  doi = {10.1149/1.1836672},
  language = {eng},
}