Ternary bismuth chalcogenides for thermoelectric applications. Synthesis and charge transport properties of new compounds in the K-Bi-S system

Mercouri G Kanatzidis, Timothy J. McCarthy, Troy A. Tanzer, Li H. Chen, Tim Hogan, Carl R. Kannewurf, Lykourgos Iordanidis

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

KBi6.33S10 and K2Bi8S13 were synthesized by the direct combination of K2S/Bi2S3 at high temperature (>700 °C). The reaction of K2S/3.3Bi2S3 at 800 °C revealed the presence of a new ternary sulfide KBi6.33S10 (I) (92% yield). The structure consists of blocks of Bi2Te3 and CdI2-type units that are connected to form a three-dimensional network with K+ ions located in the channels that run along the b-axis. The same reaction but with a different ratio, at 750 °C, gave the new ternary sulfide K2Bi8S13 (II) (94% yield). The structure of the shiny rod-like crystals is closely related to that of I. As in I, it also consists of Bi2Te3 and CdI2-type fragments that connect to form K+-filled channels. The two potassium atoms and one bismuth atom are disordered over three sites. Some preliminary electrical and optical properties of these materials are discussed.

Original languageEnglish
Title of host publicationMaterials Research Society Symposium - Proceedings
EditorsRudiger Bormann, Giorgio Mazzone, Robert D. Shull, Robert S. Averback, Ronald F. Ziolo
PublisherMaterials Research Society
Pages37-43
Number of pages7
Volume410
Publication statusPublished - 1996
EventProceedings of the 1995 Fall MRS Symposium - Boston, MA, USA
Duration: Nov 27 1995Nov 30 1995

Other

OtherProceedings of the 1995 Fall MRS Symposium
CityBoston, MA, USA
Period11/27/9511/30/95

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Chalcogenides
Bismuth
Sulfides
Transport properties
Charge transfer
Atoms
Potassium
Electric properties
Optical properties
Ions
Crystals
Temperature

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

Cite this

Kanatzidis, M. G., McCarthy, T. J., Tanzer, T. A., Chen, L. H., Hogan, T., Kannewurf, C. R., & Iordanidis, L. (1996). Ternary bismuth chalcogenides for thermoelectric applications. Synthesis and charge transport properties of new compounds in the K-Bi-S system. In R. Bormann, G. Mazzone, R. D. Shull, R. S. Averback, & R. F. Ziolo (Eds.), Materials Research Society Symposium - Proceedings (Vol. 410, pp. 37-43). Materials Research Society.

Ternary bismuth chalcogenides for thermoelectric applications. Synthesis and charge transport properties of new compounds in the K-Bi-S system. / Kanatzidis, Mercouri G; McCarthy, Timothy J.; Tanzer, Troy A.; Chen, Li H.; Hogan, Tim; Kannewurf, Carl R.; Iordanidis, Lykourgos.

Materials Research Society Symposium - Proceedings. ed. / Rudiger Bormann; Giorgio Mazzone; Robert D. Shull; Robert S. Averback; Ronald F. Ziolo. Vol. 410 Materials Research Society, 1996. p. 37-43.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Kanatzidis, MG, McCarthy, TJ, Tanzer, TA, Chen, LH, Hogan, T, Kannewurf, CR & Iordanidis, L 1996, Ternary bismuth chalcogenides for thermoelectric applications. Synthesis and charge transport properties of new compounds in the K-Bi-S system. in R Bormann, G Mazzone, RD Shull, RS Averback & RF Ziolo (eds), Materials Research Society Symposium - Proceedings. vol. 410, Materials Research Society, pp. 37-43, Proceedings of the 1995 Fall MRS Symposium, Boston, MA, USA, 11/27/95.
Kanatzidis MG, McCarthy TJ, Tanzer TA, Chen LH, Hogan T, Kannewurf CR et al. Ternary bismuth chalcogenides for thermoelectric applications. Synthesis and charge transport properties of new compounds in the K-Bi-S system. In Bormann R, Mazzone G, Shull RD, Averback RS, Ziolo RF, editors, Materials Research Society Symposium - Proceedings. Vol. 410. Materials Research Society. 1996. p. 37-43
Kanatzidis, Mercouri G ; McCarthy, Timothy J. ; Tanzer, Troy A. ; Chen, Li H. ; Hogan, Tim ; Kannewurf, Carl R. ; Iordanidis, Lykourgos. / Ternary bismuth chalcogenides for thermoelectric applications. Synthesis and charge transport properties of new compounds in the K-Bi-S system. Materials Research Society Symposium - Proceedings. editor / Rudiger Bormann ; Giorgio Mazzone ; Robert D. Shull ; Robert S. Averback ; Ronald F. Ziolo. Vol. 410 Materials Research Society, 1996. pp. 37-43
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