Synthesis of n-type Mg2Si/CNT Thermoelectric Nanofibers

Abstract

Abstract Magnesium silicide (Mg2Si)/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 Mg2Si which was an approximately 60-nm-thick single crystal. The synthesized Mg2Si-coated CNTs exhibited n-type thermoelectric behavior confirming that n-type thermoelectric composite nanofibers were successfully obtained.

Keywords

• Carbon nanotubes
• Magnesium silicide
• Thermoelectric nanofibers
• Flexible thermoelectric material