DOI: 10.1063/1.2743815. Effect of In additions on the thermoelectric properties of the type-I clathrate compound Ba8Ga16Ge30

Effect of In additions on the thermoelectric properties of the type-I clathrate compound Ba8Ga16Ge30

10.1063/1.2743815

Crossref journal-article

AIP Publishing

Journal of Applied Physics (317)

Abstract

The thermoelectric properties of quaternary type-I clathrate compounds, Ba8Ga16−xInxGe30 (x=0–9), have been investigated as a function of In content and temperature. The substitution of In atoms for Ga atoms leads to a decrease in electrical resistivity, as well as a decrease in thermal conductivity. The decrease in electrical resisitivity is explained in terms of the In occupancy behavior in the 6c sites, whereas the decrease in thermal conductivity in terms of the increased extent of the rattling motion of Ba atoms due to the increased lattice constant. As a result, the value of thermoelectric dimensionless figure of merit (ZT) of Ba8Ga16Ge30 is improved by In substitutions from 0.49 to 1.03 at 670°C when x=6.

Bibliography

Okamoto, N. L., Kishida, K., Tanaka, K., & Inui, H. (2007). Effect of In additions on the thermoelectric properties of the type-I clathrate compound Ba8Ga16Ge30. Journal of Applied Physics, 101(11).

Authors 4

Norihiko L. Okamoto (first)
Kyosuke Kishida (additional)
Katsushi Tanaka (additional)
Haruyuki Inui (additional)

References 19 Referenced 48

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Dates

Type	When
Created	18 years, 2 months ago (June 11, 2007, 10:26 p.m.)
Deposited	2 years ago (Aug. 4, 2023, 11:05 p.m.)
Indexed	1 month ago (July 30, 2025, 6:49 a.m.)
Issued	18 years, 3 months ago (June 1, 2007)
Published	18 years, 3 months ago (June 1, 2007)
Published Online	18 years, 2 months ago (June 11, 2007)
Published Print	18 years, 3 months ago (June 1, 2007)

Funders 0

None

BibTeX

@article{Okamoto_2007, title={Effect of In additions on the thermoelectric properties of the type-I clathrate compound Ba8Ga16Ge30}, volume={101}, ISSN={1089-7550}, url={http://dx.doi.org/10.1063/1.2743815}, DOI={10.1063/1.2743815}, number={11}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={Okamoto, Norihiko L. and Kishida, Kyosuke and Tanaka, Katsushi and Inui, Haruyuki}, year={2007}, month=jun }

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