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Initial Assessment of the Thermoelectric Properties for the Mixed System K2−xRbxBi8Se13

Published online by Cambridge University Press:  21 March 2011

John R. Ireland ,
Theodora Kyratsi ,
Mercouri G. Kanatzidis  and
C. R. Kannewurf
John R. Ireland
Affiliation:
Dept. of Electrical and Computer Engineering, Northwestern University, Evanston, IL, 60208-3118, U.S.A
Theodora Kyratsi
Affiliation:
Dept. of Chemistry and Center for Fundamental Materials Research, Michigan State University, East Lansing, MI, 48824-1322, U.S.A
Mercouri G. Kanatzidis
Affiliation:
Dept. of Chemistry and Center for Fundamental Materials Research, Michigan State University, East Lansing, MI, 48824-1322, U.S.A
C. R. Kannewurf
Affiliation:
Dept. of Electrical and Computer Engineering, Northwestern University, Evanston, IL, 60208-3118, U.S.A
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Abstract

In previous studies we have investigated the thermoelectric properties of undoped and doped compositions of β-K2Bi8Se13. The attempt to substitute Rb for K resulted in a different structure type, but with potentially useful thermal properties. In this paper the results of measuring the thermoelectric properties of small crystalline samples for K2−xRbxBi8Se13 solid solutions are reported for the compositional ranges with 0 ≤ × ≤ 1 and with 1.8 ≤ × ≤ 2. The presence of rubidium provides a significant improvement in the thermopower but has much less of an effect on the electrical conductivity. The combined results are reflected in the power factor behavior as a function of temperature.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 691: Symposium G – Thermoelectric Materials 2001--Research and Applications , 2001 , G13.4
Copyright
Copyright © Materials Research Society 2002

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References

REFERENCES

1. Chung, D-Y, Choi, K-S, Iordanidis, L., Schindler, J.L., Brazis, P.W., Kannewurf, C.R., Chen, B., Hu, S., Uher, C., Kanatzidis, M.G., Chem. Mater. 9, 12, p 3060 (1997).Google Scholar
2. Brazis, P.W., Rocci-Lane, M., Ireland, J.R., Chung, D-Y, Kanatzidis, M.G. and Kannewurf, C.R., Proceedings of the 18th International Conference on Thermoelectrics, 619 (1999).Google Scholar
3. Iordanidis, L., Brazis, P.W., Kyratsi, Th., Ireland, J., Lane, M., Kannewurf, C.R., Chen, W., Dyck, J.S., Uher, C., Ghelani, N., Hogan, T. and Kanatzidis, M.G., Chem. Mater. 13, 2, p 622 (2001).Google Scholar
4. Kyratsi, Th., Chung, D-Y, Choi, K-S, Dick, J.S., Chen, W., Uher, C. and Kanatzidis, M.G., in Thermoelectric Materials 2000 – The Next Generation Materials for Small-Scale Refrigeration and Power Generation Applications, edited by Tritt, T.M., Nolas, G.S., Mahan, G.D., Mandrus, D., and Kanatzidis, M.G., (Mat. Res. Soc. Proc, 626, Warrendale, PA, 2001) pp. Z8.8.1– Z8.8.6.Google Scholar
5. Marcy, H.O., Marks, T.J., Kannewurf, C.R., IEEE Trans. Instrum.. Meas. 39, 756 (1990).Google Scholar