<trans-title>Influence of Ge1-xInxTe Microstructure on Thermoelectric Properties</trans-title>

Xiaoxiao QIU; Xiying ZHOU; Yuntian FU; Xiaomeng SUN; Lianjun WANG; Wan JIANG

doi:10.15541/jim20190641

Journal of Inorganic Materials, Volume. 35, Issue 8, 916(2020)

Influence of Ge_1-_xIn_xTe Microstructure on Thermoelectric Properties

Xiaoxiao QIU1... Xiying ZHOU1,*, Yuntian FU2, Xiaomeng SUN2, Lianjun WANG3,* and Wan JIANG2 |Show fewer author(s)

Author Affiliations

¹School of Materials Engineering, Shanghai University of Engineering and Science, Shanghai 201620, China

²State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China

³Engineering Research Center of Advanced Glasses Manufacturing Technology, Ministry of Education, Donghua University, Shanghai 201620, China

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Figures & Tables(10)

1. XRD patterns of Ge_1-_xIn_xTe compounds

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2. XPS patterns of Ge_1-_xIn_xTe

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3. EDS mapping of the elements in Ge_0.97In_0.03Te

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4. Fructure surface SEM images of Ge_1-_xIn_xTe

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5. Thermoelectric properties of Ge_1-_xIn_xTe

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6. Heat capacity of Ge_1-_xIn_xTe

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7. Mechanism of the effect of structure on thermoelectric performance

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Table 1. Lattice parameters and volume of Ge_1-_xIn_xTe
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Table 1. Lattice parameters and volume of Ge_1-_xIn_xTe
x a/nm b/nm c/nm V/nm³
0 0.4165 0.4165 1.0667 0.160284
0.01 0.4167 0.4167 1.0656 0.160234
0.02 0.4170 0.4170 1.0639 0.160204
0.03 0.4173 0.4173 1.0627 0.160278
0.05 0.4175 0.4175 1.0604 0.160037
0.10 0.4192 0.4192 1.0449 0.159058

Table 2. Information of different elements of Ge_0.97In_0.03Te
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Table 2. Information of different elements of Ge_0.97In_0.03Te
Element Atomic number Mass/% Normalized quality/% Atom/% Abs. error/%
Te 52 64.25 64.28 50.38 1.89
Ge 32 34.24 34.26 47.18 1.91
In 49 1.43 1.46 1.27 0.07

Table 3. Electrical transport properties of Ge_1-_xIn_xTe at room temperature

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Table 3. Electrical transport properties of Ge_1-_xIn_xTe at room temperature

Sample	ρ/(g·cm^-3)	d/%	σ/(×10⁴, S·m^-1)	S/(μV·K^-1)	n_H/(×10²⁰, cm^-3)	m_H/(cm²·V^-1·s^-1)	L₀/(×10^-8, V²·K^-2)
x=0	6.176	99.27	74.92	38.4	16.32	35.31	2.22
x =0.005	6.168	99.00	54.75	49.7	—	—	2.15
x =0.010	6.184	99.16	49.75	54.5	—	—	2.13
x =0.015	6.193	99.20	37.72	64.3	13.05	25.44	2.07
x =0.020	6.185	98.95	30.61	66.8	—	—	2.05
x =0.025	6.170	98.59	26.80	77.9	—	—	2.01
x =0.030	6.183	98.75	22.49	86.0	10.55	22.54	1.98
x =0.050	6.162	97.86	11.47	125	9.818	12.40	1.84
x =0.100	6.240	97.48	1.02	267	4.083	5.521	1.60

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Xiaoxiao QIU, Xiying ZHOU, Yuntian FU, Xiaomeng SUN, Lianjun WANG, Wan JIANG. Influence of Ge_1-_xIn_xTe Microstructure on Thermoelectric Properties[J]. Journal of Inorganic Materials, 2020, 35(8): 916

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