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Potential Step Probes of Epitaxial Growth in Electrodeposited BCC Tl2O3 Films onto FCC Conducting Metal Oxides

  • Richard J. Phillips (a1), Teresa D. Golden (a1) and Jay A. Switzer (a1)


Potential step transients were investigated as an in-situ probe of epitaxial growth for electrodeposited conducting metal oxides of the Tl2O3 and PbaTlbOc systems. Changes in the induction time and growth type were observed for Tl2O3 deposition as a function of the substrate. The substrates studied were glassy carbon and [210]-textured Pb0.8Tl0.2O1.9· T12O3 deposited onto the glassy carbon electrode showed a distinct induction time, the magnitude of which was potential dependent. Also the type of growth was characterized as three dimensional with instantaneous nucleation. X-ray diffraction of this film shows a nearly random pattern. The potential step transient for Tl2O3 deposited onto the [210]-textured Pb0.8Tl0.2O1.9, showed the absence of an induction time and elimination of the growth segment. The type of growth was characterized as two dimensional. X-ray diffraction indicated epitaxy was obtained for the Tl2O3 films which grew two dimensionally onto the [210]-textured mixed oxide.



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Bauer, E.G. et al., J. Mater. Res., 5 (4), 852 (1990).
2. Switzer, J.A., Shane, M.J. and Phillips, R.J., Science, 247, 444 (1990).
3. Breyfogle, B.E., Phillips, R.J. and Switzer, J.A., Chem. Mater., in press.
4. Sakai, M., Sekine, T. and Yamazaki, Y., J. Electrochem. Soc, 130 (7), 1631 (1983).
5. Wells, A.F., Structural Inorganic Chemistry. 5th edition, (Oxford University Press, New York, 1991) p 545.
6. Thirsk, H.R. and Harrison, J.A., A Guide to the Study of Electrode Kinetics. (Academic Press, New York, 1972) Ch 3.


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