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diff --git a/Engineering_Physics_by_V_Yadav/6-Semiconductors_and_Nano_Physics.ipynb b/Engineering_Physics_by_V_Yadav/6-Semiconductors_and_Nano_Physics.ipynb new file mode 100644 index 0000000..69ccd09 --- /dev/null +++ b/Engineering_Physics_by_V_Yadav/6-Semiconductors_and_Nano_Physics.ipynb @@ -0,0 +1,92 @@ +{ +"cells": [ + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "# Chapter 6: Semiconductors and Nano Physics" + ] + }, +{ + "cell_type": "markdown", + "metadata": {}, + "source": [ + "## Example 6.1: Resistivity_of_intrinsic_semiconductor_at_300_K.sce" + ] + }, + { +"cell_type": "code", + "execution_count": null, + "metadata": { + "collapsed": true + }, + "outputs": [], +"source": [ +"// Scilab Code Ex6.1:: Page-6.19 (2009)\n", +"clc; clear;\n", +"T = 300; // Temperature of pure semiconductor, K\n", +"n_i = 2.5e+019; // Intrinsic carrier density, per metre square\n", +"e = 1.6e-019; // Charge on an electron, C\n", +"mu_e = 0.39; // Mobility of electrons, Sq.m/V/s\n", +"mu_h = 0.19; // Mobility of holes, Sq.m/V/s\n", +"sigma_i = e*n_i*(mu_e+mu_h); // Conductivity of intrinsic semiconductor at 300 K, mho/m\n", +"rho_i = 1/sigma_i; // Resistivity of intrinsic semiconductor at 300 K, ohm-m\n", +"\n", +"printf('\nThe resistivity of intrinsic semiconductor at 300 K = %4.2f ohm-m', rho_i);\n", +"\n", +"// Result \n", +"// The resistivity of intrinsic semiconductor at 300 K = 0.43 ohm-m " + ] + } +, +{ + "cell_type": "markdown", + "metadata": {}, + "source": [ + "## Example 6.2: Velocity_of_electron_at_Fermi_level.sce" + ] + }, + { +"cell_type": "code", + "execution_count": null, + "metadata": { + "collapsed": true + }, + "outputs": [], +"source": [ +"// Scilab Code Ex6.2: : Page-6.19 (2009)\n", +"clc; clear;\n", +"e = 1.6e-019; // Energy equivalent of 1 eV, J/eV\n", +"E_F = 2.0*e; // Fermi level of Po, J\n", +"m = 9.1e-031; // Mass of an electron, kg\n", +"// As E_F = 1/2*m*v^2, solving for v\n", +"v = sqrt(2*E_F/m); // Velocity of electron at Fermi level, m/s \n", +"printf('\nThe Velocity of electron at Fermi level = %4.2e m/s', v);\n", +"\n", +"// Result \n", +"// The Velocity of electron at Fermi level = 8.39e+05 m/s " + ] + } +], +"metadata": { + "kernelspec": { + "display_name": "Scilab", + "language": "scilab", + "name": "scilab" + }, + "language_info": { + "file_extension": ".sce", + "help_links": [ + { + "text": "MetaKernel Magics", + "url": "https://github.com/calysto/metakernel/blob/master/metakernel/magics/README.md" + } + ], + "mimetype": "text/x-octave", + "name": "scilab", + "version": "0.7.1" + } + }, + "nbformat": 4, + "nbformat_minor": 0 +} |