Thermoelectric and structural properties of Zn4Sb3 under hydrostatic pressure

Anh, Do Thi Kim; Tanaka, Tetsushi; Nakamoto, G.; Kurisu, Makio

doi:10.1016/j.jallcom.2005.11.012

Cited by 10 publications

(8 citation statements)

References 7 publications

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“…n slightly decreases at x ¼ 0.10, increases with further increasing Cd content, and then reaches 4 Â 10 20 cm À3 at x ¼ 0.30. The previous high pressure study has also demonstrated that the Seebeck coefficient decreases while the electrical conductivity is enhanced with pressure in the Cd-free Zn 4 Sb 3 compound and has concluded that the carrier number is increased by compression of the lattice [30]. Thus, the observed increase in S by the Cd substitution is consistent with a prediction by the lattice compression experiment under pressure.…”

Section: Power Factorsupporting

confidence: 79%

Preparation of the crack-free single phase (Zn1–Cd )13Sb10 by a gradient freeze method and their structural and thermoelectric properties

2012

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Section: Power Factorsupporting

confidence: 79%

Preparation of the crack-free single phase (Zn1–Cd )13Sb10 by a gradient freeze method and their structural and thermoelectric properties

2012

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“…Some of them are Na x CoO 2 , − filled skutterudites ((Ce,La)Fe 4− x Co x Sb 12 , 0 ≤ x ≤ 4), clathrates with a general formula A 8 B 16 C 30 (( A ) Eu, Ba, Sr, (B) Ga, Al, (C) Ge, Si, Sn), − half-Heusler alloys (e.g., (Ti,Zr,Hf)NiSn, (Hf,Zr,Ti)NiSn, (Zr,Hf)Co(Sb,Sn), etc. ), Zintl compounds (e.g., Zn 4 Sb 3 , , Yb 14 MnSb 11 , bulk and low-dimensional transition metal oxides (e.g., SrTiO 3 ), , and many others. High thermoelectric properties can manifest even in materials which were never considered as potential thermoelectrics.…”

Section: Introductionmentioning

confidence: 99%

High-Pressure Routes in the Thermoelectricity or How One Can Improve a Performance of Thermoelectrics

2009

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High pressure has a strong impact on materials. In regards to thermoelectrics, pressure is able to significantly improve their thermoelectric (TE) performance (i.e., power factor and figure of merit), and for this reason, pressure is a powerful tool for energy conversion technologies. This paper reviews studies on thermoelectric properties of relevant materials (PbTe, PbSe, Bi 2 Te 3 , Sb 2 Te 3 , and others) under pressure. It is figured out that enhanced thermoelectric properties of lead telluride and bismuth telluride appear beyond a range of energy gaps proposed for a "conventional" thermoelectricity in narrow-gap semiconductors. An example given for SmTe hints that pressure effects on the thermoelectric performance may be tremendous. This review also attends studies on high-pressure thermoelectric properties in the presence of a nonzero magnetic field. Influence of magnetic-field-related effects, such as magnetoresistance, magnetothermopower (Nernst-Ettingshausen effects), and Maggi-Reghi-Leduc effect is analyzed on examples of PbTe, PbSe, and Te. Problems related to both in situ measurements of transport properties under pressure, and practical realization of highpressure (magneto-)thermoelectric devices are discussed. In summary, this review reports the-stateof-the-art of pressure influence on thermoelectric materials and shows alternative poorly explored routes in the thermoelectricity.

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“…Zn 4 Sb 3 partly decomposed to ZnSb, Zn/ZnO, and elemental Sb when held at temperature higher than 523 K [12,13]. Many efforts have been made to improve the thermoelectric properties of Zn 4 Sb 3 , such as investigations of fabrication [14,15], improvements to the preparation method [11,16] and doping of foreign elements.…”

Section: Introductionmentioning

confidence: 99%