Fe-Doping Effect on Thermoelectric Properties of p-Type Bi(0.48)Sb(1.52)Te(3)

The substitutional doping approach has been shown to be an effective strategy to improve ZT of Bi(2)Te(3)-based thermoelectric raw materials. We herein report the Fe-doping effects on electronic and thermal transport properties of polycrystalline bulks of p-type Bi(0.48)Sb(1.52)Te(3). After a small...

Descripción completa

Detalles Bibliográficos
Autores principales: Mun, Hyeona, Lee, Kyu Hyoung, Kim, Suk Jun, Kim, Jong-Young, Lee, Jeong Hoon, Lim, Jae-Hong, Park, Hee Jung, Roh, Jong Wook, Kim, Sung Wng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2015
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5455449/
https://www.ncbi.nlm.nih.gov/pubmed/28787981
http://dx.doi.org/10.3390/ma8030959
_version_ 1783241040389472256
author Mun, Hyeona
Lee, Kyu Hyoung
Kim, Suk Jun
Kim, Jong-Young
Lee, Jeong Hoon
Lim, Jae-Hong
Park, Hee Jung
Roh, Jong Wook
Kim, Sung Wng
author_facet Mun, Hyeona
Lee, Kyu Hyoung
Kim, Suk Jun
Kim, Jong-Young
Lee, Jeong Hoon
Lim, Jae-Hong
Park, Hee Jung
Roh, Jong Wook
Kim, Sung Wng
author_sort Mun, Hyeona
collection PubMed
description The substitutional doping approach has been shown to be an effective strategy to improve ZT of Bi(2)Te(3)-based thermoelectric raw materials. We herein report the Fe-doping effects on electronic and thermal transport properties of polycrystalline bulks of p-type Bi(0.48)Sb(1.52)Te(3). 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 Bi(0.48)Sb(1.52)Te(3) by these synergetic effects.
format Online
Article
Text
id pubmed-5455449
institution National Center for Biotechnology Information
language English
publishDate 2015
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-54554492017-07-28 Fe-Doping Effect on Thermoelectric Properties of p-Type Bi(0.48)Sb(1.52)Te(3) Mun, Hyeona Lee, Kyu Hyoung Kim, Suk Jun Kim, Jong-Young Lee, Jeong Hoon Lim, Jae-Hong Park, Hee Jung Roh, Jong Wook Kim, Sung Wng Materials (Basel) Article The substitutional doping approach has been shown to be an effective strategy to improve ZT of Bi(2)Te(3)-based thermoelectric raw materials. We herein report the Fe-doping effects on electronic and thermal transport properties of polycrystalline bulks of p-type Bi(0.48)Sb(1.52)Te(3). 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 Bi(0.48)Sb(1.52)Te(3) by these synergetic effects. MDPI 2015-03-05 /pmc/articles/PMC5455449/ /pubmed/28787981 http://dx.doi.org/10.3390/ma8030959 Text en © 2015 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Mun, Hyeona
Lee, Kyu Hyoung
Kim, Suk Jun
Kim, Jong-Young
Lee, Jeong Hoon
Lim, Jae-Hong
Park, Hee Jung
Roh, Jong Wook
Kim, Sung Wng
Fe-Doping Effect on Thermoelectric Properties of p-Type Bi(0.48)Sb(1.52)Te(3)
title Fe-Doping Effect on Thermoelectric Properties of p-Type Bi(0.48)Sb(1.52)Te(3)
title_full Fe-Doping Effect on Thermoelectric Properties of p-Type Bi(0.48)Sb(1.52)Te(3)
title_fullStr Fe-Doping Effect on Thermoelectric Properties of p-Type Bi(0.48)Sb(1.52)Te(3)
title_full_unstemmed Fe-Doping Effect on Thermoelectric Properties of p-Type Bi(0.48)Sb(1.52)Te(3)
title_short Fe-Doping Effect on Thermoelectric Properties of p-Type Bi(0.48)Sb(1.52)Te(3)
title_sort fe-doping effect on thermoelectric properties of p-type bi(0.48)sb(1.52)te(3)
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5455449/
https://www.ncbi.nlm.nih.gov/pubmed/28787981
http://dx.doi.org/10.3390/ma8030959
work_keys_str_mv AT munhyeona fedopingeffectonthermoelectricpropertiesofptypebi048sb152te3
AT leekyuhyoung fedopingeffectonthermoelectricpropertiesofptypebi048sb152te3
AT kimsukjun fedopingeffectonthermoelectricpropertiesofptypebi048sb152te3
AT kimjongyoung fedopingeffectonthermoelectricpropertiesofptypebi048sb152te3
AT leejeonghoon fedopingeffectonthermoelectricpropertiesofptypebi048sb152te3
AT limjaehong fedopingeffectonthermoelectricpropertiesofptypebi048sb152te3
AT parkheejung fedopingeffectonthermoelectricpropertiesofptypebi048sb152te3
AT rohjongwook fedopingeffectonthermoelectricpropertiesofptypebi048sb152te3
AT kimsungwng fedopingeffectonthermoelectricpropertiesofptypebi048sb152te3

Ejemplares similares