抄録
We measured the field electron emission properties of carbon nanotubes (CNTs) with and without laser irradiation. As a result, the threshold voltage was found to decrease by laser irradiation. However, the improvement for current stability was not observed so much. Analyzing the emission characteristics with using Seppen-Katamuki (S-K) plot, it was found that the structural change of CNTs caused the decrease of the turn-on voltage. And we roughly estimated the shape of the CNTs emitter with S-K plot.