Study of Nanostructure Inclusion Effects on the Thermoelectric Behavior of Ca3Co4O9 Thin Films Grown by Pulsed Laser Deposition

Published

February 1, 2011

Author(s)

Winnie K. Wong-Ng, Evans L. Thomas, Xueyan Song, Yonggao Y. Yan, Joshua B. Martin, Margaret Ratcliff, Paul N. Barnes

Abstract

The influence of incorporating nanoparticulate additions into Ca3Co4O9 (CCO) thin films prepared by pulsed laser deposition using composite targets of CCO + BaZrO3 (BZO) on Si, LaAlO3 and Al2O3 substrates is investigated. X-ray data and high-resolution scanning electron microscopy reveal preferred c-axis orientation of the films deposited on Si substrates with the formation of nanoparticles between ~ 10 – 50 nm. Preliminary thermoelectric behavior show an enhancement of the power factor α2/ρ at room temperature. The microstructure and thermoelectric behavior of the CCO films are compared to the BZO-doped films.

Proceedings Title

Thermoelectric Materials - Growth, Properties, Novel Characterization Methods, and Applications

Volume

1267

Conference Dates

April 5-9, 2010

Conference Location

San Francisco, MD

Conference Title

Materials Research Society Spring meeting

Pub Type

Conferences

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DOI Link

Keywords

Ca3Co4O9 films, thermoelectric behavior, pulsed laser deposition

Citation

Wong-Ng, W. , Thomas, E. , Song, X. , Yan, Y. , Martin, J. , Ratcliff, M. and Barnes, P. (2011), Study of Nanostructure Inclusion Effects on the Thermoelectric Behavior of Ca3Co4O9 Thin Films Grown by Pulsed Laser Deposition, Thermoelectric Materials - Growth, Properties, Novel Characterization Methods, and Applications , San Francisco, MD, [online], https://doi.org/10.1557/PROC-1267-DD10-14 (Accessed December 11, 2024)