Thermal instability of a conduction channel in chemical vapor deposition diamond films

Abstract

Field emission from chemical vapor deposited diamond and diamond-like carbon films: Investigations of surface damage and conduction mechanisms

Vacuum breakdown of carbon-nanotube field emitters on a silicon tip

“…It was proposed that the current runaway is a critical turning point for initiating a vacuum breakdown process of a cathode. 11,12 The SEM image shows that the breakdown of this emitter ͓inset of Fig. 3͑c͔͒ left a volcano-like cave, indicating that the broken may involve an arc-shocking process.…”

Vacuum electron field emission from SnO2nanowhiskers synthesized by thermal evaporation

“…At the same time, sample A shows an emission current runaway phenomenon in the high field region. This is identified by a negative resistance behaviour indicating a critical turning point for initiating a vacuum breakdown process of a cathode [18,19].…”

Theoretical study of thermal instability of Mo tips with and without diamond coatings

“…10 To obtain the temperature distribution in the bulk region of the channel, we must solve the general heat conduction equation in the coating layer with surface sources of heat at the channel-coating interface as a boundary condition. As a consequence of high current density in the conduction channel, there will be energy transfer from the electric field to electrons at the rate of Ej, where E and j are the field and the current density of the channel, respectively.…”