From 64d949698432e05f2a372d9edc859c5b9df1f438 Mon Sep 17 00:00:00 2001 From: kinitrupti Date: Fri, 12 May 2017 18:40:35 +0530 Subject: Revised list of TBCs --- Materials_Science/Chapter16.ipynb | 275 -------------------------------------- 1 file changed, 275 deletions(-) delete mode 100755 Materials_Science/Chapter16.ipynb (limited to 'Materials_Science/Chapter16.ipynb') diff --git a/Materials_Science/Chapter16.ipynb b/Materials_Science/Chapter16.ipynb deleted file mode 100755 index 3ff4c3db..00000000 --- a/Materials_Science/Chapter16.ipynb +++ /dev/null @@ -1,275 +0,0 @@ -{ - "metadata": { - "name": "", - "signature": "sha256:267ebfe4747dc282d89f7efa1dce2f2f4b1f305bd03bf7fa58c0d8bd7749c9c1" - }, - "nbformat": 3, - "nbformat_minor": 0, - "worksheets": [ - { - "cells": [ - { - "cell_type": "heading", - "level": 1, - "metadata": {}, - "source": [ - "Chapter16:Semiconductors" - ] - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Ex16.1:pg-315" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "#Example 16.1 : concentration\n", - "\n", - "#given data :\n", - "e=1.602*10**-19;# Coulomb\n", - "sigma_i=5*10**-4;# in ohm/m\n", - "mu_n=0.14;# in m**2/V-sec\n", - "mu_p=0.05;# in m**2/V-sec\n", - "n_i=sigma_i/(e*(mu_n+mu_p));\n", - "print round(n_i*10**6,-20),\"= the concentration,n_i(/cm**3) \"\n" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "1.64e+22 = the concentration,n_i(/cm**3) \n" - ] - } - ], - "prompt_number": 27 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Ex16.2:pg-315" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "#Example 16.2 : intrinsic carrier\n", - " \n", - "\n", - "#given data :\n", - "e=1.602*10**-19; # Coulomb\n", - "p_i=2*10**-4;# in ohm-m\n", - "mu_n=6;# in m**2/V-sec\n", - "mu_p=0.2;# in m**2/V-sec\n", - "n_i=1/(e*(mu_n+mu_p)*p_i);\n", - "print round(n_i,-19),\"= the intrinsic carrier,n_i(/m**3) \"\n" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "5.03e+21 = the intrinsic carrier,n_i(/m**3) \n" - ] - } - ], - "prompt_number": 28 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Ex16.3:pg-315" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "#Example 16.3 : neglect the intrinsic conductivity\n", - " \n", - "\n", - "#given data :\n", - "e=1.6*10**-19; # Coulomb\n", - "sigma=10**-12;# in mhos/m\n", - "mu_n=0.18;# in m**2/V-sec\n", - "n=sigma/(e*mu_n);\n", - "N=n; # amount of n type impurity\n", - "print round(N),\"in(/m**3) \"\n", - "# The answer is slightly different in textbook due to approximation" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "34722222.0 in(/m**3) \n" - ] - } - ], - "prompt_number": 15 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Ex16.4:pg-315" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "#Example 16.4 : number of electron carriers\n", - " \n", - "\n", - "#given data :\n", - "e=1.6*10**-19; # Coulomb\n", - "p=20*10**-2;# in ohm-m\n", - "mu_n=100*10**-4;# in m**2/V-sec\n", - "n=1/(e*mu_n*p);\n", - "print round(n,-19),\"= number of electrons carrier,n(/m**3) \"\n" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "3.12e+21 = number of electrons carrier,n(/m**3) \n" - ] - } - ], - "prompt_number": 30 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Ex16.5:pg-316" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "#Example 16.5 : concentration of impurity\n", - "import math\n", - "e=1.6*10**-19;# Coulomb\n", - "l=10;#in mm\n", - "d=1;#in mm\n", - "r=100;#in ohms\n", - "up=0.19;#mobilty of electrons in V-sec\n", - "a=(math.pi*((d*10**-3)**2))/4;#area in m**2\n", - "p=((r*a))/(l*10**-3);#resistivity in Ohm-cm\n", - "n=((1/(p*e*up)));#concentration in per m**3\n", - "print round(n,-19),\"is impurity concentration is in per m**3\"\n" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "4.19e+21 is impurity concentration is in per m**3\n" - ] - } - ], - "prompt_number": 32 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Ex16.6:pg-316" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "#Example 16.6 : intrinsic carrier density\n", - " \n", - "#given data :\n", - "\n", - "e=1.602*10**-19; # in coulomb\n", - "p=3000.0;# in ohm/m\n", - "sigma=1/p;# in ohm/m\n", - "mu_n=0.14;# in m**2/V-sec\n", - "mu_p=0.05;# in m**2/V-sec\n", - "n_i=sigma/(e*(mu_n+mu_p));\n", - "print round(n_i,-13),\"is the concentration,n_i(/m**3) \"\n" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "1.095e+16 is the concentration,n_i(/m**3) \n" - ] - } - ], - "prompt_number": 39 - }, - { - "cell_type": "heading", - "level": 2, - "metadata": {}, - "source": [ - "Ex16.7:pg-317" - ] - }, - { - "cell_type": "code", - "collapsed": false, - "input": [ - "#Example 16.7 : conductivity\n", - " \n", - "#given data :\n", - "e=1.602*10**-19; # in coulomb\n", - "n_i=5.021*10**15; # in m**-3\n", - "mu_n=0.48;# in m**2/V-sec\n", - "mu_p=0.013;# in m**2/V-sec\n", - "sigma=n_i*(e*(mu_n+mu_p));\n", - "print round(sigma,9),\"= the conductivity,sigma(ohm**-1 m**-1) \"\n" - ], - "language": "python", - "metadata": {}, - "outputs": [ - { - "output_type": "stream", - "stream": "stdout", - "text": [ - "0.000396552 = the conductivity,sigma(ohm**-1 m**-1) \n" - ] - } - ], - "prompt_number": 42 - } - ], - "metadata": {} - } - ] -} \ No newline at end of file -- cgit