Substitutions in the homologous family CsPbmBi 3Te5+m and preliminary thermoelectric results

Aurélie Guéguen; Eric Quarez; Mercouri G. Kanatzidis

Substitutions in the homologous family CsPb_mBi ₃Te_5+m and preliminary thermoelectric results

Aurélie Guéguen^*, Eric Quarez, Mercouri G. Kanatzidis

^*Corresponding author for this work

Chemistry

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

We report analogs of the homologous family CsPb_mBi ₃Te_5+m, namely Cs_0.74K_0.76Bi _3.5Te₆ (1), CsNa_0.98Bi_4.01Te ₇ (2), Cs_0.69Ca_0.65Bi_0.34Te ₆ (3), Rb_0.82Pb_0.82Bi_3.18Te ₆ (4), Rb_0.19K_1.31Bi_3.50Te ₆ (5), RbSnBi₃Te₆ (6), Rb_0.94Ca _0.94Bi_3.06Te₆ (7) and RbYbBi₃Te ₆ (8). They all crystallize in the orthorhombic space group Cmcm and are isostructural to CsPbBi₃Te₆ the first member of the family except for CsNa_0.98Bi_4.01Te₇ which is isostructural to CsPb₂Bi₃Te₇, the second member of the family. The R₁ factor was 0.0455 for (1), 0.0491 for (2), 0.0367 for (3), 0.0287 for (4), 0.0458 for (5), 0.0498 or (6), 0.0560 for (7) and 0.0356 for (8). Preliminary thermoelectric measurements on Cs _0.76K_0.74Bi_3.5Te₆ show electrical conductivity values in the range of 600-1000 S/cm. The thermopower shows n-type charge transport with room temperature values of ∼ -35 μV/K. By comparison, the electrical conductivity at room temperature of Rb _0.82Pb_0.82Bi_3.18Te₆ was ∼1400 S/cm, while the thermopower was ∼ -20 μV/K.

Original language	English (US)
Title of host publication	Materials Research Society Symposium Proceedings
Pages	299-304
Number of pages	6
State	Published - May 8 2006
Event	2005 Materials Research Society Fall Meeting - Boston, MA, United States Duration: Nov 28 2005 → Dec 1 2005

Publication series

Name	Materials Research Society Symposium Proceedings
Volume	886
ISSN (Print)	0272-9172

Other

Other	2005 Materials Research Society Fall Meeting
Country	United States
City	Boston, MA
Period	11/28/05 → 12/1/05

ASJC Scopus subject areas

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

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@inproceedings{41a970f8d2824101b2146fe8f8c21170,

title = "Substitutions in the homologous family CsPbmBi 3Te5+m and preliminary thermoelectric results",

abstract = "We report analogs of the homologous family CsPbmBi 3Te5+m, namely Cs0.74K0.76Bi 3.5Te6 (1), CsNa0.98Bi4.01Te 7 (2), Cs0.69Ca0.65Bi0.34Te 6 (3), Rb0.82Pb0.82Bi3.18Te 6 (4), Rb0.19K1.31Bi3.50Te 6 (5), RbSnBi3Te6 (6), Rb0.94Ca 0.94Bi3.06Te6 (7) and RbYbBi3Te 6 (8). They all crystallize in the orthorhombic space group Cmcm and are isostructural to CsPbBi3Te6 the first member of the family except for CsNa0.98Bi4.01Te7 which is isostructural to CsPb2Bi3Te7, the second member of the family. The R1 factor was 0.0455 for (1), 0.0491 for (2), 0.0367 for (3), 0.0287 for (4), 0.0458 for (5), 0.0498 or (6), 0.0560 for (7) and 0.0356 for (8). Preliminary thermoelectric measurements on Cs 0.76K0.74Bi3.5Te6 show electrical conductivity values in the range of 600-1000 S/cm. The thermopower shows n-type charge transport with room temperature values of ∼ -35 μV/K. By comparison, the electrical conductivity at room temperature of Rb 0.82Pb0.82Bi3.18Te6 was ∼1400 S/cm, while the thermopower was ∼ -20 μV/K.",

author = "Aur{\'e}lie Gu{\'e}guen and Eric Quarez and Kanatzidis, {Mercouri G.}",

year = "2006",

month = may,

day = "8",

language = "English (US)",

isbn = "1558998403",

series = "Materials Research Society Symposium Proceedings",

pages = "299--304",

booktitle = "Materials Research Society Symposium Proceedings",

note = "2005 Materials Research Society Fall Meeting ; Conference date: 28-11-2005 Through 01-12-2005",

}

Substitutions in the homologous family CsPb_mBi ₃Te_5+m and preliminary thermoelectric results. / Guéguen, Aurélie; Quarez, Eric; Kanatzidis, Mercouri G.

Materials Research Society Symposium Proceedings. 2006. p. 299-304 (Materials Research Society Symposium Proceedings; Vol. 886).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Substitutions in the homologous family CsPbmBi 3Te5+m and preliminary thermoelectric results

AU - Guéguen, Aurélie

AU - Quarez, Eric

AU - Kanatzidis, Mercouri G.

PY - 2006/5/8

Y1 - 2006/5/8

N2 - We report analogs of the homologous family CsPbmBi 3Te5+m, namely Cs0.74K0.76Bi 3.5Te6 (1), CsNa0.98Bi4.01Te 7 (2), Cs0.69Ca0.65Bi0.34Te 6 (3), Rb0.82Pb0.82Bi3.18Te 6 (4), Rb0.19K1.31Bi3.50Te 6 (5), RbSnBi3Te6 (6), Rb0.94Ca 0.94Bi3.06Te6 (7) and RbYbBi3Te 6 (8). They all crystallize in the orthorhombic space group Cmcm and are isostructural to CsPbBi3Te6 the first member of the family except for CsNa0.98Bi4.01Te7 which is isostructural to CsPb2Bi3Te7, the second member of the family. The R1 factor was 0.0455 for (1), 0.0491 for (2), 0.0367 for (3), 0.0287 for (4), 0.0458 for (5), 0.0498 or (6), 0.0560 for (7) and 0.0356 for (8). Preliminary thermoelectric measurements on Cs 0.76K0.74Bi3.5Te6 show electrical conductivity values in the range of 600-1000 S/cm. The thermopower shows n-type charge transport with room temperature values of ∼ -35 μV/K. By comparison, the electrical conductivity at room temperature of Rb 0.82Pb0.82Bi3.18Te6 was ∼1400 S/cm, while the thermopower was ∼ -20 μV/K.

AB - We report analogs of the homologous family CsPbmBi 3Te5+m, namely Cs0.74K0.76Bi 3.5Te6 (1), CsNa0.98Bi4.01Te 7 (2), Cs0.69Ca0.65Bi0.34Te 6 (3), Rb0.82Pb0.82Bi3.18Te 6 (4), Rb0.19K1.31Bi3.50Te 6 (5), RbSnBi3Te6 (6), Rb0.94Ca 0.94Bi3.06Te6 (7) and RbYbBi3Te 6 (8). They all crystallize in the orthorhombic space group Cmcm and are isostructural to CsPbBi3Te6 the first member of the family except for CsNa0.98Bi4.01Te7 which is isostructural to CsPb2Bi3Te7, the second member of the family. The R1 factor was 0.0455 for (1), 0.0491 for (2), 0.0367 for (3), 0.0287 for (4), 0.0458 for (5), 0.0498 or (6), 0.0560 for (7) and 0.0356 for (8). Preliminary thermoelectric measurements on Cs 0.76K0.74Bi3.5Te6 show electrical conductivity values in the range of 600-1000 S/cm. The thermopower shows n-type charge transport with room temperature values of ∼ -35 μV/K. By comparison, the electrical conductivity at room temperature of Rb 0.82Pb0.82Bi3.18Te6 was ∼1400 S/cm, while the thermopower was ∼ -20 μV/K.

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UR - http://www.scopus.com/inward/citedby.url?scp=33646195978&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:33646195978

SN - 1558998403

SN - 9781558998407

T3 - Materials Research Society Symposium Proceedings

SP - 299

EP - 304

BT - Materials Research Society Symposium Proceedings

T2 - 2005 Materials Research Society Fall Meeting

Y2 - 28 November 2005 through 1 December 2005

ER -