초록 |
CNTs have emerged as one of the most promising electron field emitter due to their high aspect ratio, high emission current and chemical stability. For such applications, it requires that CNTs be aligned over large-scale. The assembly of CNTs attached nanoparticles is one of the most challenging tasks in alignment of CNTs attached nanoparticles by external field, field effect transistors, and field emission devices. Here, we present a novel method for aligning CNTs external fields on the CNTs-attached nanoparticles. The nanoparticles were constructed via thermal decomposition in high boiling solvent by metal chloride and sodium oleate. The nanoparticles were attached to the CNTs during termal reaction precess. TEM revealed the CNTs dotted with nanoparticles and SEM results show that the nanoparticles functionalized CNTs align perpendicular to the surface. We discuss the emission properties of those materials as a function of alignment. |