Synthesis of n-type MgSi/CNT Thermoelectric Nanofibers.

Magnesium silicide (MgSi)/carbon nanotube (CNT) thermoelectric nanofibers for use as a flexible thermoelectric material were successfully synthesized through the combined processes of the sol-gel method, magnesiothermic reduction, and liquid-solid phase reaction. In the resulting product, each CNT was coated with MgSi which was an approximately 60-nm-thick single crystal. The synthesized MgSi-coated CNTs exhibited n-type thermoelectric behavior confirming that n-type thermoelectric composite nanofibers were successfully obtained.