Minority carrier Hall mobility

Buehler, M.; Pensak, L.

doi:10.1016/0038-1101(64)90040-1

Cited by 3 publications

(1 citation statement)

References 7 publications

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“…Since it is evident that both electrons and holes are simultaneously present in FeSb 2 due to the small gaps on the whole temperature range investigated, the conclusion drawn cannot be strong. A more rigorous investigation would have required a larger number of samples displaying different types of conduction and/or not readily available measurement techniques for measuring minority and majority carrier mobility. , Measurements above room temperature have been performed by another system developed at Fraunhofer IPM (HT-IPM-SRX) for high temperatures. , The combination of both SRX systems enables the measurement of the electrical transport properties from 70 to 1100 K. Nevertheless for this study the temperature range was more limited in order to preserve the sample that had to be mounted in the various measurement systems. The accuracy of the electrical conductivity (5% of the measured value) is especially good with the SRX system because of the use of the Van der Pauw method.…”

Section: Experimental Sectionmentioning

confidence: 99%

Chemical Synthesis of Iron Antimonide (FeSb₂) and Its Thermoelectric Properties

et al. 2016

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Low temperature thermoelectric (TE) materials are in demand for more efficient cooling and power generation applications. Iron antimonide (FeSb2) draws great attention over the past few years because of its enhanced power factor values. Polycrystalline bulk FeSb2 nanopowder was prepared via a low-temperature molten salts approach followed by subsequent thermal treatment in synthetic air and hydrogen gas for calcination and reduction reactions, respectively. Structural analysis confirms the desired final phase with submicrometer grain size and high compaction density after consolidation using spark plasma sintering (SPS). TE transport properties revealed that the material is n-type below 150 K and p-type above this temperature; this suggests antimony vacancies in FeSb2. The electrical conductivity increased significantly, and the highest conductivity achieved was 6000 S/cm at 100 K. The maximum figure-of-merit, ZT, of 0.04 is achieved at 500 K, which is about 6 times higher than the earlier reported state-of-the art ZT value for the same material.

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