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

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

^*Corresponding author for this work

Chemistry

Research output: Contribution to journal › Conference article › peer-review

5 Scopus citations

Abstract

KBi_6.33S₁₀ 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 KBi_6.33S₁₀ (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 language	English (US)
Pages (from-to)	37-43
Number of pages	7
Journal	Materials Research Society Symposium - Proceedings
Volume	410
State	Published - Jan 1 1996
Event	Proceedings of the 1995 Fall MRS Symposium - Boston, MA, USA Duration: Nov 27 1995 → Nov 30 1995

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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@article{e50e8379bf6c432a91ac2ee0cfbb8119,

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

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.",

author = "Kanatzidis, {Mercouri G.} and McCarthy, {Timothy J.} and Tanzer, {Troy A.} and Chen, {Li H.} and Tim Hogan and Kannewurf, {Carl R.} and Lykourgos Iordanidis",

year = "1996",

month = jan,

day = "1",

language = "English (US)",

volume = "410",

pages = "37--43",

journal = "Materials Research Society Symposium - Proceedings",

issn = "0272-9172",

publisher = "Materials Research Society",

note = "Proceedings of the 1995 Fall MRS Symposium ; Conference date: 27-11-1995 Through 30-11-1995",

}

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. et al.

In: Materials Research Society Symposium - Proceedings, Vol. 410, 01.01.1996, p. 37-43.

Research output: Contribution to journal › Conference article › peer-review

TY - JOUR

T1 - Ternary bismuth chalcogenides for thermoelectric applications. Synthesis and charge transport properties of new compounds in the K-Bi-S system

AU - Kanatzidis, Mercouri G.

AU - McCarthy, Timothy J.

AU - Tanzer, Troy A.

AU - Chen, Li H.

AU - Hogan, Tim

AU - Kannewurf, Carl R.

AU - Iordanidis, Lykourgos

PY - 1996/1/1

Y1 - 1996/1/1

N2 - 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.

AB - 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.

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M3 - Conference article

AN - SCOPUS:0029708671

VL - 410

SP - 37

EP - 43

JO - Materials Research Society Symposium - Proceedings

JF - Materials Research Society Symposium - Proceedings

SN - 0272-9172

T2 - Proceedings of the 1995 Fall MRS Symposium

Y2 - 27 November 1995 through 30 November 1995

ER -

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

Abstract

ASJC Scopus subject areas

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