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Title: Process dependent thermoelectric properties of EDTA assisted bismuth telluride

Abstract

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{sub 1}) prepared via hydrothermal route has higher value of thermoelectric power (S) than the electrodeposited film (S{sub 2}). But due to a substantial increase in the electrical conductivity (σ) of the film (S{sub 2}) over the pellet (S{sub 1}), the power factor and the figure of merit is higher for sample S{sub 2} than the sample S{sub 1} at room temperature.

Authors:
;  [1];  [2]
  1. Department of Physics, Indian Institute of Engineering Science and Technology, Shibpur, Howrah-711103, West Bengal (India)
  2. Chemical Engineering Department, Jadavpur University, Kolkata-700032, West Bengal (India)
Publication Date:
OSTI Identifier:
22591067
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1724; Journal Issue: 1; Conference: ETMN-2015: 2. international conference on emerging technologies: Micro to nano 2015, Rajasthan (India), 24-25 Oct 2015; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ACETIC ACID; BISMUTH TELLURIDES; COMPARATIVE EVALUATIONS; EDTA; ELECTRIC CONDUCTIVITY; ELECTROCHEMISTRY; ELECTRODEPOSITION; ETHYLENE; FIELD EMISSION; POWER FACTOR; SCANNING ELECTRON MICROSCOPY; STRAINS; TEMPERATURE RANGE 0273-0400 K; THERMOELECTRIC PROPERTIES; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION

Citation Formats

Kulsi, Chiranjit, Banerjee, Dipali, E-mail: dipalibanerjeebesu@gmail.com, and Kargupta, Kajari. Process dependent thermoelectric properties of EDTA assisted bismuth telluride. United States: N. p., 2016. Web. doi:10.1063/1.4945148.
Kulsi, Chiranjit, Banerjee, Dipali, E-mail: dipalibanerjeebesu@gmail.com, & Kargupta, Kajari. Process dependent thermoelectric properties of EDTA assisted bismuth telluride. United States. doi:10.1063/1.4945148.
Kulsi, Chiranjit, Banerjee, Dipali, E-mail: dipalibanerjeebesu@gmail.com, and Kargupta, Kajari. Wed . "Process dependent thermoelectric properties of EDTA assisted bismuth telluride". United States. doi:10.1063/1.4945148.
@article{osti_22591067,
title = {Process dependent thermoelectric properties of EDTA assisted bismuth telluride},
author = {Kulsi, Chiranjit and Banerjee, Dipali, E-mail: dipalibanerjeebesu@gmail.com and Kargupta, Kajari},
abstractNote = {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{sub 1}) prepared via hydrothermal route has higher value of thermoelectric power (S) than the electrodeposited film (S{sub 2}). But due to a substantial increase in the electrical conductivity (σ) of the film (S{sub 2}) over the pellet (S{sub 1}), the power factor and the figure of merit is higher for sample S{sub 2} than the sample S{sub 1} at room temperature.},
doi = {10.1063/1.4945148},
journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1724,
place = {United States},
year = {2016},
month = {4}
}