MONTE-CARLO SIMULATION OF HOT-ELECTRON CHARGE-TRANSPORT IN DIAMOND UNDER AN INTERNAL ELECTRIC-FIELD

Charge transport in diamond is studied using the Monte Carlo method, i n which the scattering of electrons by phonons is considered stochasti cally. It is assumed that electrons are injected into the diamond cond uction band with an initial equilibrium energy distribution and they a re then accelerated by the internal held subject to phonon scattering. It is found that the electron energy distribution is independent of t he field up to similar or equal to 0.1 V/mu m. For larger fields, ''ho t'' electron transport is predicted, i.e., the distribution shows a ta il which depends on the internal field and the thickness of the diamon d film. It implies that if electron field emission is from the conduct ion band in a diamond film, the transport and the energy spectrum of t he emitted electrons should exhibit hot electron features. (C) 1995 Am erican Institute of Physics.