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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2021.1
- 수록면
- 102 - 108 (7page)
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Zintl compounds were recognized as very good thermoelectric candidate due to their characteristics electron-crystal phononglassproperties. Mg3Sb2is a known Group II–V Zintl semiconductor. This compound is a well-established thermoelectricmaterial and many of recent works focus on this compound due to its intrinsic low thermal conductivity. The band gap ofthis compound has been shown to be optimum, making it a promising thermoelectric material. This work introduces a newsynthetic method and analyzes the thermoelectric properties found using this method. The single phase of Mg3Sb2wassynthesized by melting elemental shots at 1173 K for 1 hour in a controlled inert Ar gas atmosphere in a tapped graphitecrucible followed by vacuum hot pressing at 873 K for 4 hours. X-ray diffraction and scanning electron microscopy werecarried out to investigate existing phases and surface morphology respectively. Thermoelectric properties in terms of Seebeckcoefficient, electrical conductivity, and thermal conductivity were evaluated and the results are discussed in comparison toanalogous studies. Transport properties were also evaluated and discussed. Single phase magnesium antimonide was foundwith a nominal formula of Mg3.8Sb2and showed a comparable ZT value which is ~ 0.24 at 873 K.
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참고문헌 (20)
참고문헌 신청
Bell, L. E. / 2008 / Cooling, heating, generating heat with and recovering waste thermoelectric / Science 321:1457~1461
Franz, R. / 1853 / Ueber die Wärme-Leitungsfähigkeit der Metalle / Ann. Phys 165:497~531
Kauzlarich, S. M. / 2007 / Zintl phases for thermoelectric devices / J. Chem. Soc. Dalt. Trans 21:2099~2107
Cao, Q. G. / 2010 / Zintl phase Yb1-xCaxCd2Sb2 with tunable thermoelectric properties induced by cation substitution / J. Appl. Phys 107:10~15
Bhardwaj, A. / 2013 / Mg3Sb2-based Zintl compound : a non-toxic, inexpensive and abundant thermoelectric material for power generation / RSC Adv 3:8504~8516
Franz, R. / 1853 / Ueber die Wärme-Leitungsfähigkeit der Metalle / Ann. Phys 165:497~531
Kauzlarich, S. M. / 2007 / Zintl phases for thermoelectric devices / J. Chem. Soc. Dalt. Trans 21:2099~2107
Cao, Q. G. / 2010 / Zintl phase Yb1-xCaxCd2Sb2 with tunable thermoelectric properties induced by cation substitution / J. Appl. Phys 107:10~15
Bhardwaj, A. / 2013 / Mg3Sb2-based Zintl compound : a non-toxic, inexpensive and abundant thermoelectric material for power generation / RSC Adv 3:8504~8516
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