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Improvement of thermoelectric properties with the addition of Sb to ZnO

Authors
Park, K.Seong, J. K.Nahm, S.
Issue Date
8-5월-2008
Publisher
ELSEVIER SCIENCE SA
Keywords
sintering; electron microscopy; electrical properties; Sb2O3; microstructure; ZnO
Citation
JOURNAL OF ALLOYS AND COMPOUNDS, v.455, no.1-2, pp.331 - 335
Indexed
SCIE
SCOPUS
Journal Title
JOURNAL OF ALLOYS AND COMPOUNDS
Volume
455
Number
1-2
Start Page
331
End Page
335
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/123549
DOI
10.1016/j.jallcom.2007.01.080
ISSN
0925-8388
Abstract
The primary phase of the as-sintered Sb2O3-added Zn1 - xSbxO(0.01 <= x <= 0.05) samples was the solid solution of Zn1 - xSbxO with a wurtzite structure. The addition of Sb2O3 to ZnO resulted in a decrease in both the grain size and the density, indicating that Sb2O3 inhibits the grain growth of ZnO. The magnitude of the electrical conductivity (or) and the absolute value of the Seebeck coefficient (vertical bar alpha vertical bar) depended strongly on the Sb2O3 content. The incorporation of Sb2O3 to ZnO up to 0.01 yielded higher sigma and vertical bar alpha vertical bar, resulting in a significant increase in the power factor (sigma alpha(2)). The highest power factor value (3.88 x 10 (- 4) Wm (- 1) K (- 2)) was attained for Zn0.99Sb0.01O at 1073 K. (c) 2007 Elsevier B.V. All rights reserved.
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