Learn More
Field emission of electrons from individually mounted carbon nanotubes has been found to be dramatically enhanced when the nanotube tips are opened by laser evaporation or oxidative etching. Emission currents of 0.1 to 1 microampere were readily obtained at room temperature with bias voltages of less than 80 volts. The emitting structures are concluded to(More)
The electronic structure of recently discovered hollow-cage molecule T&C,, has been calculated and compared to similarly shaped hypothetical molecules M8Xi2 (M=metal and X= B, C, or N). The cohesion of the cage is related to the o-bonding between M-X arising from d-sp hybridization. It is also shown that the cage can become electronically closed shell with(More)
  • 1