Nano Archive

Monte Carlo simulation of the EBIC collection efficiency of a Schottky nanocontact

Ledra, M and Tabet, N (2009) Monte Carlo simulation of the EBIC collection efficiency of a Schottky nanocontact. Superlattices and Microstructures, 45 (4-5). 444 -450.

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We have used a Monte Carlo (MC) algorithm to simulate the Electron Beam Induced Current (EBIC) collection efficiency of a nano-sized Schottky contact of radius rc perpendicular to the incident electron beam. The surface area around the metallic contact was assumed to be an infinite recombination velocity. The results show that, at low beam energies, the EBIC collection efficiency increases rapidly as the radius of the contact (rc) increases, and converges to a constant value as rc becomes comparable to the carrier diffusion length. At higher beam energies, the variation of the EBIC signal with rc is much slower because of the larger lateral extension of the generation volume. It is also shown that the maximum collection efficiency increases with the increase of the carrier diffusion length, and decreases as the incident beam energy increases, regardless of the size of the contact.

Item Type:Article
Uncontrolled Keywords:Monte Carlo simulation; EBIC; Nano Schottky contact; Semiconductors
Subjects:Physical Science > Nanophysics
ID Code:3957
Deposited By:SPI
Deposited On:08 Apr 2009 11:19
Last Modified:08 Apr 2009 11:19

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