• P-ISSN 0974-6846 E-ISSN 0974-5645

Indian Journal of Science and Technology


Indian Journal of Science and Technology

Year: 2010, Volume: 3, Issue: 1, Pages: 37-40

Original Article

Hot electron of steady-state transport in submicrometer ZnSe and ZnS n+ -i(n)-n+ diodes


Monte Carlo simulation of steady-state electron transport in ZnSe and ZnS diodes of n+ -i(n)-n+ structure with a 0.2 µm active layer length is described. The anode voltage ranges from 1 to 5 V. The distributions of electron energies and electron velocities, and the profiles of the electron density, electric field, potential and average electron velocity are computed. Based on these data, the near ballistic nature of the electron transport in the 0.2 µm long diode and the importance of the back-scattering of electrons from the anode n+ -layer are discussed. Also, the effects of the lattice temperature and doping on the length of the active layer are discussed. Our calculations show that electron reach to a higher drift velocity in the ZnSe than ZnS. So ZnSe material is a good candidate for high power device fabrication.
Keywords: Active layer, diode, drift velocity, ballistic. 


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