Abstract
Ceramic compacts of spinel-type ZnIn2S4 and IIIa-ZnIn2S4 polytype with a layer structure were synthesized by the reaction-sintering of mixed powders of ZnS and In2S3 at 723 K and 1073 K in Ar (containing 1° H2) atmosphere, respectively. The thermoelectric properties were investigated in the temperature range from 473 to 873 K. Thermoelectric figure of merit of the IIIa type was much larger than that of the spinel type, and it was slightly higher than the figure of merit of (ZnO)9In2O3, which is known to show the largest value among the oxide homologous compounds. To improve the thermoelectric properties, a c-plane-oriented sintered body of the IIIa polytype was successfully fabricated by a usual ceramic process. The figure of merit in the direction on the c plane was larger than on the ab plane due to higher electrical conductivity on the c plane and increased with increasing temperature showing the largest value of 1.3 × 10−4 K−1 at 873 K.
Similar content being viewed by others
References
S. Mora, C. Paorici, and N. Romeo, J. Appl. Phys. 42, 2061 (1971).
N. Romeo, A. Dallaturca, R. Braglia, and G. Sberveglieri, Appl. Phys. Lett. 22, 21 (1973).
A. Cingolani, M. Ferrara, A. Minafra, F. Adduci, and P. Tantalo, Phys. Status Solidi A 23, 367 (1974).
E. Grilli and M. Guzzi, Phys. Status Solidi A 40, 69 (1977).
V.F. Zhitar, N.A. Moldovyan, and S.I. Radautsan, Sov. Phys. Semicond. 13, 1100 (1979).
H. Ohta, W.S. Seo, and K. Koumoto, J. Am. Ceram. Soc. 79, 2193 (1996).
M. Kazeoka, H. Hiramatsu, W.S. Seo, and K. Koumoto, J. Mater. Res. 13, 523 (1998).
H. Hiramatsu, H. Ohta, W.S. Seo, and K. Koumoto, J. Jpn. Soc. Powder and Powder Metall. 44, 44 (1997).
G.A. Slack, in New Materials and Performance Limits for Thermoelectric Cooling, CRC Handbook of Thermoelectrics, edited by D.M. Rowe (CRC Press, Boca Raton, FL, 1995), pp. 407–440.
A.N. Anagnostopoulos, C. Manolikas, D. Papadopoulos, and J. Spyridelis, Phys. Status Solidi A 72, 731 (1982).
A.N. Anagnostopoulos, C. Manolikas, D. Papadopoulos, Phys. Status Solidi A 77, 595 (1983).
M. Bianchetti, G. Herren, G. Lascalea, and N.E. Walsoe de Reca, Solid State Ionics 50, 115 (1992).
J.A. Kalomiros, A.N. Anagnostopoulos, and J. Spyridelis, Semicond. Sci. Technol. 4, 563 (1989).
K.J. Range, W. Becker, and A. Weiss, Z. Naturforsch., B: Chem. Sci. 24, 811 (1969).
N. Berand and K.J. Range, J. Alloys Compd. 205, 295 (1994).
N. Berand and K.J. Range, J. Alloys Compd. 241, 29 (1996).
L. Baldassarre, V. Capozzi, G. Maggipinto, and A. Minafra, Phys. Status Solidi A 46, 589 (1978).
F.W. Schmidlin, and G.G. Roberts, Phys. Rev. B: Solid State 9, 1578 (1974).
A.N. Anagnostopoulos, Phys. Status Solidi A 75, 595 (1983).
N. Frangis and C. Manolikas, Phys. Status Solidi A 107, 589 (1988).
W.S. Seo and K. Koumoto (unpublished).
L.V. Azaroff, and J.J. Brophy, in Electronic Processes in Materials (McGraw-Hill, New York, 1963), pp. 194–267.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Seo, WS., Otsuka, R., Okuno, H. et al. Thermoelectric properties of sintered polycrystalline ZnIn2S4 . Journal of Materials Research 14, 4176–4181 (1999). https://doi.org/10.1557/JMR.1999.0565
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1557/JMR.1999.0565