학술행사

Improved electrical and thermal properties of doped MWCNTs synthesized by direct current arc dischar

  • 일시 2021-01-07 10:00 ~ 11:00
  • 장소 Nano Convergence Conference 2021
  • 연사 Syed Muhammad Zain Mehdi, Naesung Lee
  • 소속 세종대 나노신소재공학과
Arc-CNTs are promising for field emitter materials thanks to their excellent crystallinity and straightness, compared to CVD-CNTs. 
Boron (B) has been known as oxidation inhibitors of carbon materials. During field emission, CNT emitters undergo severe degradation due to Joule heating. It is expected that B doping would improve the thermal stability of CNT emitters.
This study investigates fabrication of B-doped MWCNTs using electric arc discharge, where B dopants were introduced from anode electrodes, and their field emission performances.
We further expect that B doping may gives rise to change of CNT geometry of arc-CNTs such as diameters, which will also affect field emission properties.