Enhanced thermoelectric figure of merit in p-type Ag-doped ZnSb nanostructured with Ag3Sb

Ding Bang Xiong; Norihiko L. Okamoto; Haruyuki Inui

doi:10.1016/j.scriptamat.2013.05.029

Enhanced thermoelectric figure of merit in p-type Ag-doped ZnSb nanostructured with Ag₃Sb

Ding Bang Xiong, Norihiko L. Okamoto, Haruyuki Inui

Research output: Contribution to journal › Article › peer-review

71 Citations (Scopus)

Abstract

Zn-Sb systems are interesting as thermoelectric materials because the elements are relatively cheap and show low toxicity. In this work, a high thermoelectric figure of merit of 1.15 at 670 K is obtained in a p-type Ag-doped ZnSb nanostructured with in situ formed Ag₃Sb because of its optimized carrier concentration and a significant reduction in lattice thermal conductivity. The samples also exhibit good thermal stability. The results here suggest that ZnSb is an efficient, stable and low-cost thermoelectric material and deserves more attention.

Original language	English
Pages (from-to)	397-400
Number of pages	4
Journal	Scripta Materialia
Volume	69
Issue number	5
DOIs	https://doi.org/10.1016/j.scriptamat.2013.05.029
Publication status	Published - 2013 Sep
Externally published	Yes

Keywords

Nanoparticle
Thermal conductivity
Thermal stability
Thermoelectric
Zinc antimonide

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

Access to Document

10.1016/j.scriptamat.2013.05.029

Cite this

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title = "Enhanced thermoelectric figure of merit in p-type Ag-doped ZnSb nanostructured with Ag3Sb",

abstract = "Zn-Sb systems are interesting as thermoelectric materials because the elements are relatively cheap and show low toxicity. In this work, a high thermoelectric figure of merit of 1.15 at 670 K is obtained in a p-type Ag-doped ZnSb nanostructured with in situ formed Ag3Sb because of its optimized carrier concentration and a significant reduction in lattice thermal conductivity. The samples also exhibit good thermal stability. The results here suggest that ZnSb is an efficient, stable and low-cost thermoelectric material and deserves more attention.",

keywords = "Nanoparticle, Thermal conductivity, Thermal stability, Thermoelectric, Zinc antimonide",

author = "Xiong, {Ding Bang} and Okamoto, {Norihiko L.} and Haruyuki Inui",

note = "Funding Information: This work was supported by Grants-in-Aid (Nos. 21246101 , 22-00078 and 23760665 ) from the Ministry of Education, Culture, Sports, Science and Technology (MEXT) Japan and in part by the Global COE (Center of Excellence) Program of International Center for Integrated Research and Advanced Education in Materials Science from the MEXT, Japan. D.B.X. thanks Dr. P.H.M. B{\"o}ttger for useful discussions and the Japan Society for the Promotion of Science (JSPS) for a postdoctoral fellowship.",

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AU - Xiong, Ding Bang

AU - Okamoto, Norihiko L.

AU - Inui, Haruyuki

N1 - Funding Information: This work was supported by Grants-in-Aid (Nos. 21246101 , 22-00078 and 23760665 ) from the Ministry of Education, Culture, Sports, Science and Technology (MEXT) Japan and in part by the Global COE (Center of Excellence) Program of International Center for Integrated Research and Advanced Education in Materials Science from the MEXT, Japan. D.B.X. thanks Dr. P.H.M. Böttger for useful discussions and the Japan Society for the Promotion of Science (JSPS) for a postdoctoral fellowship.

PY - 2013/9

Y1 - 2013/9

N2 - Zn-Sb systems are interesting as thermoelectric materials because the elements are relatively cheap and show low toxicity. In this work, a high thermoelectric figure of merit of 1.15 at 670 K is obtained in a p-type Ag-doped ZnSb nanostructured with in situ formed Ag3Sb because of its optimized carrier concentration and a significant reduction in lattice thermal conductivity. The samples also exhibit good thermal stability. The results here suggest that ZnSb is an efficient, stable and low-cost thermoelectric material and deserves more attention.

AB - Zn-Sb systems are interesting as thermoelectric materials because the elements are relatively cheap and show low toxicity. In this work, a high thermoelectric figure of merit of 1.15 at 670 K is obtained in a p-type Ag-doped ZnSb nanostructured with in situ formed Ag3Sb because of its optimized carrier concentration and a significant reduction in lattice thermal conductivity. The samples also exhibit good thermal stability. The results here suggest that ZnSb is an efficient, stable and low-cost thermoelectric material and deserves more attention.

KW - Nanoparticle

KW - Thermal conductivity

KW - Thermal stability

KW - Thermoelectric

KW - Zinc antimonide

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