Solid State Reaction Synthesis and Thermoelectric Properties of Ag-Doped Mg2Si0.8Ge0.2

Abstract:

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By two-step solid state reaction, Mg2Si0.8Ge0.2 was successfully synthesized .The effect of Ag-doping concentration on the thermoelectric transport properties of p-type Mg2Si0.8Ge0.2 was investigated. With the increasing of Ag-doping concentration, the electrical conductivity σ and Seebeck coefficient α increase correspondingly over the measuring temperature range (300-800K).The peaks of the curves of Seebeck coefficient versus temperature shift towards the lower temperature .When the doping concentration of Ag is 16000ppm(nominal molar percent), the power factor P of Mg2Si0.8Ge0.2 reaches 4.4×10-4W/mK2 at 800K,obviously improved in comparison with the sample with no additive .

Info:

Periodical:

Edited by:

Chi Y.A. Tsao and Jing Kun Guo

Pages:

177-182

DOI:

10.4028/www.scientific.net/KEM.313.177

Citation:

Q. Z. Liu et al., "Solid State Reaction Synthesis and Thermoelectric Properties of Ag-Doped Mg2Si0.8Ge0.2 ", Key Engineering Materials, Vol. 313, pp. 177-182, 2006

Online since:

July 2006

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Price:

$35.00

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