Structure and thermoelectric properties of new layered compounds in the quaternary system Cs-Pb-Bi-Te

Kuei-Fang Hsu; Duck Young Chung; Sangeeta Lal; Tim Hogan; Mercouri G. Kanatzidis

Structure and thermoelectric properties of new layered compounds in the quaternary system Cs-Pb-Bi-Te

Kuei-Fang Hsu, Duck Young Chung, Sangeeta Lal, Tim Hogan, Mercouri G. Kanatzidis

Department of Chemistry

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

3 Citations (Scopus)

Abstract

By introducing of various equivalents of PbTe into the layered framework of CsBi₄Te₆, the four new compounds CsPbBi₃Te₆ (1), CsPb₂Bi₃Te₇ (2), CsPb₃Bi₃Te₈ (3) and CsPb₄Bi₃Te₉ (4), were discovered. The compounds adopt layered structures built up of anionic slabs of progressively increasing thickness. The [Pb_mBi₃Te_5+m]^- (m = 1, 2, 3, 4) slabs in the four structures can be viewed as fragments excised from the PbTe-type structures with 4-, 5-, 6- and 7-monolayers, respectively. As prepared, these materials are off-stoichiometric and n-type conductors. We present preliminary results of the crystal structures and thermoelectric properties of these materials and classify them as members of the new homologous series CsPb_mBi₃Te_5+m (m = 1 to 4).

Original language	English
Pages (from-to)	269-274
Number of pages	6
Journal	Materials Research Society Symposium - Proceedings
Volume	691
Publication status	Published - 2002 Jan 1
Event	Thermoelectric Materials 2001-Research and Applications - Boston, MA, United States Duration: 2001 Nov 26 → 2001 Nov 29

All Science Journal Classification (ASJC) codes

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Cite this

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title = "Structure and thermoelectric properties of new layered compounds in the quaternary system Cs-Pb-Bi-Te",

abstract = "By introducing of various equivalents of PbTe into the layered framework of CsBi4Te6, the four new compounds CsPbBi3Te6 (1), CsPb2Bi3Te7 (2), CsPb3Bi3Te8 (3) and CsPb4Bi3Te9 (4), were discovered. The compounds adopt layered structures built up of anionic slabs of progressively increasing thickness. The [PbmBi3Te5+m]- (m = 1, 2, 3, 4) slabs in the four structures can be viewed as fragments excised from the PbTe-type structures with 4-, 5-, 6- and 7-monolayers, respectively. As prepared, these materials are off-stoichiometric and n-type conductors. We present preliminary results of the crystal structures and thermoelectric properties of these materials and classify them as members of the new homologous series CsPbmBi3Te5+m (m = 1 to 4).",

author = "Kuei-Fang Hsu and Chung, {Duck Young} and Sangeeta Lal and Tim Hogan and Kanatzidis, {Mercouri G.}",

year = "2002",

month = jan,

day = "1",

language = "English",

volume = "691",

pages = "269--274",

journal = "Materials Research Society Symposium - Proceedings",

issn = "0272-9172",

publisher = "Materials Research Society",

note = "Thermoelectric Materials 2001-Research and Applications ; Conference date: 26-11-2001 Through 29-11-2001",

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TY - JOUR

T1 - Structure and thermoelectric properties of new layered compounds in the quaternary system Cs-Pb-Bi-Te

AU - Hsu, Kuei-Fang

AU - Chung, Duck Young

AU - Lal, Sangeeta

AU - Hogan, Tim

AU - Kanatzidis, Mercouri G.

PY - 2002/1/1

Y1 - 2002/1/1

N2 - By introducing of various equivalents of PbTe into the layered framework of CsBi4Te6, the four new compounds CsPbBi3Te6 (1), CsPb2Bi3Te7 (2), CsPb3Bi3Te8 (3) and CsPb4Bi3Te9 (4), were discovered. The compounds adopt layered structures built up of anionic slabs of progressively increasing thickness. The [PbmBi3Te5+m]- (m = 1, 2, 3, 4) slabs in the four structures can be viewed as fragments excised from the PbTe-type structures with 4-, 5-, 6- and 7-monolayers, respectively. As prepared, these materials are off-stoichiometric and n-type conductors. We present preliminary results of the crystal structures and thermoelectric properties of these materials and classify them as members of the new homologous series CsPbmBi3Te5+m (m = 1 to 4).

AB - By introducing of various equivalents of PbTe into the layered framework of CsBi4Te6, the four new compounds CsPbBi3Te6 (1), CsPb2Bi3Te7 (2), CsPb3Bi3Te8 (3) and CsPb4Bi3Te9 (4), were discovered. The compounds adopt layered structures built up of anionic slabs of progressively increasing thickness. The [PbmBi3Te5+m]- (m = 1, 2, 3, 4) slabs in the four structures can be viewed as fragments excised from the PbTe-type structures with 4-, 5-, 6- and 7-monolayers, respectively. As prepared, these materials are off-stoichiometric and n-type conductors. We present preliminary results of the crystal structures and thermoelectric properties of these materials and classify them as members of the new homologous series CsPbmBi3Te5+m (m = 1 to 4).

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M3 - Conference article

AN - SCOPUS:0036351539

SN - 0272-9172

VL - 691

SP - 269

EP - 274

JO - Materials Research Society Symposium - Proceedings

JF - Materials Research Society Symposium - Proceedings

T2 - Thermoelectric Materials 2001-Research and Applications

Y2 - 26 November 2001 through 29 November 2001

ER -

Structure and thermoelectric properties of new layered compounds in the quaternary system Cs-Pb-Bi-Te

Abstract

All Science Journal Classification (ASJC) codes

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