Field-Induced Electron Emission from Nanoporous Carbons

Laser-induced ultrafast electron emission from a field emission tip

We show that a fi eld emission tip electron source that is triggered with a femtosecond laser pulse can generate electron pulses shorter than the laser pulse duration (100  fs). The emission process is sensitive to a power law of the laser intensity, which supports an emission mechanism based on multiphoton absorption followed by over-the-barrier emission. Observed continuous transitions betw...

Role of sp2 phase in field emission from nanostructured carbons

It is shown that sp phase organization plays an important role in the field emission from nanostructured carbons. Emission is found to depend on the cluster size, anisotropy, and mesoscale bonding of the sp phase, and the electronic disorder. It is found by Raman spectroscopy that increasing the size of sp clusters in the 1–10 nm range improves emission. Anisotropy in the sp phase orientation c...

I. Field-induced Hot-electron Emission (fihee) from Mim Microstructures

Models of Field Induced Electron Emission from Electrolytic Conductors

A theory of field induced electron emission from electrolytic conductors is proposed in which an electron associated with an immobile anion at the surface is destabilised as a cation moves into the bulk. This electron may be thermally emitted over a field-lowered barrier. Equations are developed for the potential barrier that must be surmounted by the electron and the form of the current versus...

Field - Free and Field - Stimulated Electron Emission from Solids

Electron irradiation of solids produces a backemission of secondary electrons (energies between 0 and 50 eV) and re ected primaries (energies between 50 eV and that of the incident beam). For insulators, it is shown that an externally applied positive electric eld penetrating into the solid material, energizes electrons generated by the primary irradiation and enables them to travel back to the...