Electrical contribution in heat transfer at Germanium between 75k and 375k by Comsol Multiphysics

Abstract

This article models germanium's thermoelectric properties since semiconductors are increasingly used in current technologies. Modelling and simulation are necessary because testing new, inventive concepts in a lab take time and money. We discuss this in this work. heating the germanium model to determine its electrical conductivity. During the simulation, one end of the semiconductor is supplied with 10 A of current while the other is connected to the ground. Using COMSOL Multiphysics, we found that a model of a semiconductor's electrical properties (electric field, current density, space charge density, external current density) varied with temperature. As the germanium model was heated from 75k to 375k, an increase in the electrical properties was observed. In turn, this increased the semiconductor's (germanium) electrical conductivity.