Enhanced thermoelectric power factor in wet chemical synthesized Sb2Te3 by the incorporation of (GO/r-GO)

被引：6

作者：

Bin Masood, Khalid ^{[1
]}

Anwar, Sharmistha ^{[2
]}

Singh, R. A. ^{[1
]}

Singh, Jai ^{[1
]}

机构：

[1] Dr Hari Singh Gour Vishwavidyalaya, Dept Phys, Sagar, MP, India

[2] CSIR Inst Minerals & Mat Technol, Adv Mat Technol Dept, Bhubaneswar, India

来源：

PHYSICA B-CONDENSED MATTER | 2020年 / 577卷

关键词：

Nanocomposites; Sb2Te3; Electrical conductivity; Seebeck coefficient; Power factor; SOLVOTHERMAL SYNTHESIS; THERMAL-CONDUCTIVITY; ANTIMONY-TELLURIDE; BISMUTH TELLURIDE; PHONON-SCATTERING; PERFORMANCE; TRANSPORT; INCREASE; LATTICE;

D O I：

10.1016/j.physb.2019.411795

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Present work deals with the thermoelectric transport properties of bare and (GO/r-GO) composites of Sb2Te3 synthesized via simple wet chemical method at the temperature of 100 degrees C. The presence of (GO/r-GO) in the as synthesized samples has been confirmed by Raman spectra, FE-SEM (NOVA NANOSEM 450) images and reduction in the intensity of XRD (Advanced D8 Bruker) diffraction peaks of the composites. Due to the addition of (GO/r-GO), power factor increased with the maximum value of 2.14 mu W/cmK(2) and 2.48 mu W/cmK(2) at 50 degrees C for Sb2Te3@GO and Sb2Te3@r-GO respectively. The results show that the maximum power factor of the Sb2Te3@rGO composite is about 35% higher than the bare Sb2Te3. This study provides the simple and effective method for the synthesis of graphene based composite thermoelectric materials and is a promising means of achieving synergistic enhancement of the thermoelectric performance levels by increasing the power factor.

引用

页数：5

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