Preparation of gold nanoparticle embedded graphitic carbon nanotubes and their field emission properties

We prepared graphitic carbon nanotubes (Au-CPNTs) embedded with gold particles of 5-6 nm in diameter. First, poly(p-phenylenevinylene( (PPV) nanotubes containing Au particles were synthesized by chemical vapro deposition polymerization (CBDP) of α,α'-dichloro-p-xylene, which was carbonized at 850°C. Field emission properties of the Au-CPNTs were found to be excellent revealing a low turn-on electric field (2.1 V/μm) and a high amplification factor (11,500). In contrast, the values for virgin CPNTs were 3.1 V/μm and 4,910, respectively.