Thermoelectric Power of Bismuth Doped Lead Telluride

Christakudi, T. A.; Christakudis, G. Ch.; Borisova, L. D.

doi:10.1002/pssa.2211140258

Cited by 3 publications

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“…The method of preparation of the investigated polycrystalline (PbTe), -,(Bi,Te,), samples with 0 5 x 5 0.02 is described in [21]. The alloys are synthesized through direct synthesis at 1300 K for about 1 h from the elements with purity 99.999% (Pb, Bi, Te) by melting in quartz ampoules sealed under vacuum of 1.3 x Pa, which are cleaned, dried, and outgased beforehand.…”

Section: Experiments and Experimental Resultsmentioning

confidence: 99%

Thermoelectric Power of Solid Solutions (PbTe)_1–x(Bi₂Te₃)x with 0 ≦ x ≦ 0.02

Christakudi

Christakudis

Borissova

1995

Physica Status Solidi (b)

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The thermoelectric power (Seebeck coefficient) S which is one of the parameters determining the figure of merit Z of thermoelectric materials is measured for polycrystalline (PbTe), -x(Bi,Te,), solid solutions as a function of temperature T (in the interval from 80 to 350 K) and composition x (in the range 0 5 x 5 0.02). The experimental results are analyzed on the basis of the two-band nonparabolic Kane model and the transport coefficient theory of A"BV' semiconductors. Some information on the phonon-drag term in this coefficient is specially extracted from the data.KOe@@AUAeHT TePMO-3.A.C. s XBJIReTCX OnHAM A 3 IIapaMeTpOB, OIIpeAeJIRIoI4AX TepMO3JICKTpAYeCKy€O 3@@eKTABHOCTb IIOJIyIIpOBOrHAKOBbIX MaTCpAaJIOB. Ero ACCJIenOBaHAe IIpeACTaBJIXeT 60n~u10G AHTepeC AJIR HayKA A TeXHOJIOTAII. B HaCTORrUe% p a 6 o~e naHa KaYeCTBeHHaR AHTepIIpeTaUAR 3aBACAMOCTH 3TOrO KO3@@AqHeHTa OT COCTaBa X A TeMIIepaTypbI T (B AHTepBaJIe OT 80 A 0 350 K) A IIOJIyYeHa AH@OPMaUHR 06 er0 @OHOHHOG COCTaBJIR€OI4& Sph AJIR IIOJIAKpACTaJIJIAYeCKHX TBepnbIX PaCTBOPOB (PbTe), -x(Bi,Te,), rne 0 2 X 5 0.02. ,&Is 3TOfi q e m liCIIOJIb30BaHbI AByX30HHaX HeIIapa-fjona~ec~an MOAeJIb KeiiHa A TeOpAR TPaHCIIOPTHbIX K03@@HUAeHTOB IIOJIyAIIpOBOAHAKOBbIX COenA-HeHAfi TAIIa A'"BV'.

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Section: Experiments and Experimental Resultsmentioning

confidence: 99%

Thermoelectric Power of Solid Solutions (PbTe)_1–x(Bi₂Te₃)x with 0 ≦ x ≦ 0.02

Christakudi

Christakudis

Borissova

1995

Physica Status Solidi (b)

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Thermoelectric Properties of Nanostructured Bismuth-Doped Lead Telluride Bi x (PbTe)1−x Prepared by Co-Ball-Milling

Falkenbach

Klar

Koch

et al. 2013

Journal of Elec Materi

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Structural and Thermoelectric Properties of Nanostructured Nominally Stoichiometric Pb1−x Bi x Te Prepared by Mechanical Alloying

Falkenbach

Loeh

Wiegand

et al. 2017

Journal of Elec Materi

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In this work we investigate the influence of bismuth substituted for lead in lead telluride. The material was nanostructured by mechanical alloying (MA) and was compacted via short term sintering (STS) and, alternatively, hot pressing (HP). Syntheses of samples with substitution up to 6 at.-% of bismuth were carried out twice to ensure reproducibility. All relevant thermoelectric transport parameters were measured in a wide temperature range from 123 K and 173 K, respectively, to 773 K. Two different techniques for measuring the electrical conductivity and the Seebeck coefficient were used, one at low and the other at high temperature. A higher bismuth content of 4 at.-% to 6 at.-% was found to lead to best thermoelectric properties with a maximum ZT value of about 0.7 at 723 K for 4.0 at.-% bismuth. The structure was examined in detail via X-ray diffraction (XRD), Raman spectroscopy and transmission electron microscopy (TEM). A key feature of the microstructure is the inhomogeneous distribution of bismuth in the lead telluride matrix and the occurrence of bismuth-rich regions on the nanoscale related to a remarkable increased carrier concentration and mobility.

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Thermoelectric Power of Bismuth Doped Lead Telluride

Cited by 3 publications

References 2 publications

Thermoelectric Power of Solid Solutions (PbTe)_1–x(Bi₂Te₃)x with 0 ≦ x ≦ 0.02

Thermoelectric Power of Solid Solutions (PbTe)_1–x(Bi₂Te₃)x with 0 ≦ x ≦ 0.02

Thermoelectric Properties of Nanostructured Bismuth-Doped Lead Telluride Bi x (PbTe)1−x Prepared by Co-Ball-Milling

Structural and Thermoelectric Properties of Nanostructured Nominally Stoichiometric Pb1−x Bi x Te Prepared by Mechanical Alloying

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Thermoelectric Power of Bismuth Doped Lead Telluride

Cited by 3 publications

References 2 publications

Thermoelectric Power of Solid Solutions (PbTe)1–x(Bi2Te3)x with 0 ≦ x ≦ 0.02

Thermoelectric Power of Solid Solutions (PbTe)1–x(Bi2Te3)x with 0 ≦ x ≦ 0.02

Thermoelectric Properties of Nanostructured Bismuth-Doped Lead Telluride Bi x (PbTe)1−x Prepared by Co-Ball-Milling

Structural and Thermoelectric Properties of Nanostructured Nominally Stoichiometric Pb1−x Bi x Te Prepared by Mechanical Alloying

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Thermoelectric Power of Solid Solutions (PbTe)_1–x(Bi₂Te₃)x with 0 ≦ x ≦ 0.02

Thermoelectric Power of Solid Solutions (PbTe)_1–x(Bi₂Te₃)x with 0 ≦ x ≦ 0.02