Electric conduction in semiconductors: a pedagogical model based on the Monte Carlo method

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Abstract

We present a pedagogic approach aimed at modelling electric conduction in semiconductors in order to describe and explain some macroscopic properties, such as the characteristic behaviour of resistance as a function of temperature. A simple model of the band structure is adopted for the generation of electron hole pairs as well as for the carrier transport in moderate electric fields. The semiconductor behaviour is described by substituting the traditional statistical approach (requiring a deep mathematical background) with microscopic models, based on the Monte Carlo method, in which simple rules applied to microscopic particles and quasi-particles determine the macroscopic properties. We compare measurements of electric properties of matter with 'virtual experiments' built by using some models where the physical concepts can be presented at different formalization levels.
Lingua originaleEnglish
pagine (da-a)451-466
RivistaEuropean Journal of Physics
Volume29
Stato di pubblicazionePublished - 2008

All Science Journal Classification (ASJC) codes

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