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

Published online by Cambridge University Press:  25 February 2011

Richard J. Phillips ,
Teresa D. Golden  and
Jay A. Switzer
Richard J. Phillips
Affiliation:
University of Missouri - Rolla, Graduate Center for Materials Research, Rolla, MO 65401
Teresa D. Golden
Affiliation:
University of Missouri - Rolla, Graduate Center for Materials Research, Rolla, MO 65401
Jay A. Switzer
Affiliation:
University of Missouri - Rolla, Graduate Center for Materials Research, Rolla, MO 65401
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Abstract

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.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 280: Symposium B – Evolution of Surface and Thin Film Microstructure , 1992 , 657
Copyright
Copyright © Materials Research Society 1993

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References

REFERENCES

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