Journal article

Publication year: 2015

Pages: 10467-10475

Journal: Journal of Materials Chemistry C Materials for optical and electronic devices

Volume number: 3

Issue number: 40

ISSN: 2050-7526

eISSN: 2050-7534

Open access status: Hybrid

DOI Link: https://doi.org/10.1039/c5tc01535a

Publisher: Royal Society of Chemistry

Abstract: 
Solid solutions of magnesium silicide and magnesium stannide exhibit excellent thermoelectric properties due to favorable electronic band structures and reduced thermal conductivity compared to the binary compounds. We have optimized the composition Mg2Si0.8Sn0.2 by Sb doping and obtained a thermoelectric figure of merit close to unity. The material comprises of several phases and exhibits intrinsic nanostructuring. Nevertheless, the main features of electronic transport can be understood within the framework of a single parabolic band model. Compared to Mg2Si we observe a comparable power factor, a drastically reduced thermal conductivity and an increased effective mass.

Harvard Citation style: de Boor, J., Gupta, S., Kolb, H., Dasgupt, T. and Mueller, E. (2015) Thermoelectric transport and microstructure of optimized Mg₂Si_0.8Sn_0.2, Journal of Materials Chemistry C Materials for optical and electronic devices, 3(40), pp. 10467-10475. https://doi.org/10.1039/c5tc01535a

APA Citation style: de Boor, J., Gupta, S., Kolb, H., Dasgupt, T., & Mueller, E. (2015). Thermoelectric transport and microstructure of optimized Mg₂Si_0.8Sn_0.2. Journal of Materials Chemistry C Materials for optical and electronic devices. 3(40), 10467-10475. https://doi.org/10.1039/c5tc01535a