hot electron


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hot electron

[′hät i′lek‚trän]
(electronics)
An electron that is in excess of the thermal equilibrium number and, for metals, has an energy greater than the Fermi level; for semiconductors, the energy must be a definite amount above that of the edge of the conduction band.
References in periodicals archive ?
Led by professors Eray Aydil, David Norris and Xiaoyang Zhu, and graduate student William Tisdale, the group used a technique they described as hot electron extraction.
Two technologies are used to program and erase a flash device: hot electron injection and Fowler-Nordheim tunneling, a quantum mechanical process in which electrons tunnel through a thin barrier in the presence of a high electric field.
Each time a CMBR photon interacts with a hot electron, it gains some energy, distorting the CMBR's spectrum in a characteristic way.
The hot electron problem seems to be intractable, and manufacturers are now only trying to minimize its effects, not eliminate them.
The hot electron source has been used on most scanning electron microscopes since their introduction in 1965.
Their more precise experiment in fact shows that the equilibration of the temperatures for hot electron and cool ions is actually three times slower than previous measurements have shown and more than ten times slower than the mathematical model predicts.
However, combining the film with better light-trapping technology- such as nanowire structures- could significantly increase efficiency in an ultra-thin hot electron solar cell technology.
The present model simulates hot electron transport properties by using nonlinear steady-state velocity and diffusivity curves in the current continuity equation.
Sunyaev and Zel'dovich predicted that hot electron gas in clusters scatters the CMBR, creating spectral distortions.
Moreover we plan to measure the temperature of hot electron heated region by taking advantage from time resolved K-shell spectroscopy.
The demonstration of this hot electron transfer establishes that a highly efficient hot carrier solar cell is not just a theoretical concept, but an experimental possibility.
However, combining the film with better light-trapping technology such as nanowire structures - could significantly increase efficiency in an ultra-thin hot electron solar cell technology.