Title

Electrodeposition of Nanomodulated Ceramic Thin Films

Abstract

Electrochemistry can be used for the atomic-level architecture of ceramic materials. in this report, ceramic superlattices based on the TlaPbbOc/TldPbeOf system were electrodeposited with individual layer thicknesses as thin as 3nm. the superlattices were deposited from a single aqueous solution at room temperature, and the layer thicknesses were galvanostatically controlled. Substitution of Ti2O3 into PbO2 appears to stabilize a face-centered cubic structure with an average lattice parameter of 0.536nm. the lattice parameters for the T1aPbbOc. mixed oxides vary by less than 0.3% when the Pb/Ti ratio is varied from 0.84 to 7.3. Because the modulation wavelengths are of electron mean free path dimensions, this new class of degenerate semiconductor metal-oxide superlattices may show thickness-dependent quantum optical, electronic, or optoelectronic effects.

Department(s)

Chemistry

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1990 Cambridge University Press, All rights reserved.


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