| 초록 |
Thermoelectric (TE) materials can directly convert heat to electricity. This power generation capability originates from the Seebeck effect. Recently, carbon-based materials have been widely investigated for TE materials because of their high flexibility, mechanical strength, thermal stability, abundancy, nontoxicity, and lightweight, etc. In this study, we fabricated a series of carbon nanofibers (CNFs) based on polyacrylonitrile and lignin via electrospinning and carbonization. In addition, to improve the thermoelectric performance, the CNFs were treated with molecular dopants, since molecular doping is one method of adjusting the thermoelectric properties by create additional charge carriers by reduction or oxidation. The electrical conductivity, Seebeck coefficient and power factor of the molecular doped CNFs were measured systematically to evaluate the thermoelectric properties. |
