Thermoelectric Transport Characteristics of n-type (PbTe)1-x-y(PbS)x(Sb2Se3)y Systems via Stepwise Addition of Dual Components

Cencen ZHANG; Xue WANG; Liangming PENG

doi:10.15541/jim20200635

Journals >Journal of Inorganic Materials >Volume 36 >Issue 9 >Page 936 > Article

Journal of Inorganic Materials
Vol. 36, Issue 9, 936 (2021)

Thermoelectric Transport Characteristics of n-type (PbTe)_1-_x_-_y(PbS)_x(Sb₂Se₃)_y Systems via Stepwise Addition of Dual Components

Cencen ZHANG, Xue WANG, and Liangming PENG^*

Author Affiliations

CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, School of Engineering Science, University of Science and Technology of China, Hefei 230026, China

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DOI: 10.15541/jim20200635 Cite this Article

Cencen ZHANG, Xue WANG, Liangming PENG. Thermoelectric Transport Characteristics of n-type (PbTe)_1-_x_-_y(PbS)_x(Sb₂Se₃)_y Systems via Stepwise Addition of Dual Components [J]. Journal of Inorganic Materials, 2021, 36(9): 936 Copy Citation Text

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XRD patterns of (PbTe)1-x-y(PbS)x(Sb2Se3)y powders

1. XRD patterns of (PbTe)_1-_x-y(PbS)_x(Sb₂Se₃)_y powders

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2. Lattice parameters a and migration angle Δ2θ of PbTe varied as functions of contents of different components

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3. Thermogravimetric analysis results of (a) AB₇ and (b) AB₅C_1.5 in N₂ atmosphere

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4. Temperature dependences of thermoelectric properties for dual-component samples AB_m

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5. Temperature dependences of thermoelectric properties for triple-component samples AB₅C_n

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$(a) Fractured surfure SEM and (b) back-scattered electron (BSE) images for sample AB5, (c) fractured surfure SEM image, (d) back-scattered electron (BSE) image and (e) EDS mappings for sample AB5C1$

6. (a) Fractured surfure SEM and (b) back-scattered electron (BSE) images for sample AB₅, (c) fractured surfure SEM image, (d) back-scattered electron (BSE) image and (e) EDS mappings for sample AB₅C₁

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7. EBSD images of AB₅C₁sample

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Nominal composition		Sample ID	R_H/(cm³∙C^-1)	n_H/(´10¹⁹, cm^-3)	μ_H/(cm²∙V^-1∙s^-1)
Matrix	PbTe	A	-0.203	3.075	82.691
Dual component	(PbTe)_0.97(PbS)_0.03	AB₃	-0.099	6.319	104.962
	(PbTe)_0.95(PbS)_0.05	AB₅	-0.115	5.918	98.805
	(PbTe)_0.93(PbS)_0.07	AB₇	-0.087	7.223	40.345
Triple component	(PbTe)_0.945(PbS)_0.05(Sb₂Se₃)_0.005	AB₅C_0.5	-0.071	8.752	89.784
	(PbTe)_0.94(PbS)_0.05(Sb₂Se₃)_0.01	AB₅C₁	-0.116	5.406	51.586
	(PbTe)_0.935(PbS)_0.05(Sb₂Se₃)_0.015	AB₅C_1.5	-0.106	5.924	30.806

Table 1. Sample ID, Hall coefficients, carrier concentrations and mobilities at room temperature for (PbTe)_1-_x-y(PbS)_x(Sb₂Se₃)_y

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