Process Dependent Thermoelectric Properties of EDTA Assisted Bismuth Telluride

被引：6

作者：

Kulsi, Chiranjit ^{[1
]}

Kargupta, Kajari ^{[2
]}

Banerjee, Dipali ^{[1
]}

机构：

[1] Indian Inst Engn Sci & Technol, Dept Phys, Howrah 711103, W Bengal, India

[2] Jadavpur Univ, Dept Chem Engn, Kolkata 700032, W Bengal, India

来源：

2ND INTERNATIONAL CONFERENCE ON EMERGING TECHNOLOGIES: MICRO TO NANO 2015 (ETMN-2015) | 2016年 / 1724卷

关键词：

Thermoelectric; Hydrothermal; Electrodeposition; Power factor; Figure of merit; THIN-FILMS; NANOCRYSTALS;

D O I：

10.1063/1.4945148

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Comparison between the structure and thermoelectric properties of EDTA (Ethylene-diamine-tetra-acetic acid) assisted bismuth telluride prepared by electrochemical deposition and hydrothermal route is reported in the present work. The prepared samples have been structurally characterized by high resolution X-ray diffraction spectra (HRXRD), field emission scanning electron microscopy (FESEM) and high resolution transmission electron microscopic images (HRTEM). Crystallite size and strain have been determined from Williamson-Hall plot of XRD which is in conformity with TEM images. Measurement of transport properties show sample in the pellet form (S-1) prepared via hydrothermal route has higher value of thermoelectric power (S) than the electrodeposited film (S-2). But due to a substantial increase in the electrical conductivity (sigma) of the film (S-2) over the pellet (S-1), the power factor and the figure of merit is higher for sample S-2 than the sample S-1 at room temperature.

引用

页数：6

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