Next Article in Journal
Film Growth Rates and Activation Energies for Core-Shell Nanoparticles Derived from a CVD Based Aerosol Process
Next Article in Special Issue
Structure and Transport Properties of the BiCuSeO-BiCuSO Solid Solution
Previous Article in Journal
A Critical Review of Dental Implant Materials with an Emphasis on Titanium versus Zirconia
Previous Article in Special Issue
Recent Progress on PEDOT-Based Thermoelectric Materials
Article Menu

Export Article

Open AccessArticle
Materials 2015, 8(3), 959-965; doi:10.3390/ma8030959

Fe-Doping Effect on Thermoelectric Properties of p-Type Bi0.48Sb1.52Te3

1
Department of Energy Science, Sungkyunkwan University, Suwon 440-746, Korea
2
Department of Nano Applied Engineering, Kangwon National University, Chuncheon 200-701, Korea
3
School of Energy, Materials and Chemical Engineering, Korea University of Technology and Education, Cheonan 330-708, Korea
4
Icheon Branch, Korea Institute of Ceramic Engineering and Technology, Icheon 467-843, Korea
5
Department of Electrical Engineering, Kwangwoon University, Seoul 139-701, Korea
6
Electrochemistry Department, Korea Institute of Materials Science, Changwon 641-010, Korea
7
Materials R&D Center, Samsung Advanced Institute of Technology, Samsung Electronics, Suwon 443-370, Korea
These authors contributed equally to this work.
*
Authors to whom correspondence should be addressed.
Academic Editor: Kunihito Koumoto
Received: 9 January 2015 / Revised: 17 February 2015 / Accepted: 26 February 2015 / Published: 5 March 2015
(This article belongs to the Special Issue Low-Dimensional Anisotropic Thermoelectrics)
View Full-Text   |   Download PDF [761 KB, uploaded 5 March 2015]   |  

Abstract

The substitutional doping approach has been shown to be an effective strategy to improve ZT of Bi2Te3-based thermoelectric raw materials. We herein report the Fe-doping effects on electronic and thermal transport properties of polycrystalline bulks of p-type Bi0.48Sb1.52Te3. After a small amount of Fe-doping on Bi/Sb-sites, the power factor could be enhanced due to the optimization of carrier concentration. Additionally, lattice thermal conductivity was reduced by the intensified point-defect phonon scattering originating from the mass difference between the host atoms (Bi/Sb) and dopants (Fe). An enhanced ZT of 1.09 at 300 K was obtained in 1.0 at% Fe-doped Bi0.48Sb1.52Te3 by these synergetic effects. View Full-Text
Keywords: doping; Bi2Te3; thermoelectric; raw material; lattice thermal conductivity doping; Bi2Te3; thermoelectric; raw material; lattice thermal conductivity
Figures

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Mun, H.; Lee, K.H.; Kim, S.J.; Kim, J.-Y.; Lee, J.H.; Lim, J.-H.; Park, H.J.; Roh, J.W.; Kim, S.W. Fe-Doping Effect on Thermoelectric Properties of p-Type Bi0.48Sb1.52Te3. Materials 2015, 8, 959-965.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Materials EISSN 1996-1944 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top