(Color online) Schematic of proton irradiation effect. Thin-out and particle-migration effect.
(Color online) Simulation results of SRIM 2008. (a) Recoiled copper atom distribution and schematic of simulation condition of proton irradiation (inset), and (b) induced vacancies within CNT layer after proton irradiation.
(Color online) Raman spectrum before/after purification with nitric acid.
(Color online) Schematic of spray coating.
Schematic and process of triboelectricity method.
SEM images of cross section of CNT field emitter according to fluence of irradiated proton. (a) Change in density of field emitter. (b) Deformation of interface between CNTs and copper thin film. The white arrows indicate embedded CNTs and co-existing region.
(Color online) Characteristics of field emission. (a) plot and (b) lifetime for 6 h.
Transferred energy to the CNT layer and Cu film of specimen.
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