《半导体物理器件基础》课后matlab

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1、MatlabexercisesExercise5.7%initializationclc;clear;%evaluationq=1.6e-19;e0=8.85e-14;ni=1.0e10;K=1.38e-23;T=300;KS=11.8;%inputvariablesNA=input('Inputthep-sidedoping,NA=');ND=input('Inputthen-sidedoping,ND=');j=input('Inputthenumberoftimesyouwanttocirculate:');VA=input('InputtheappliedVoltage,VA=')

2、;%mainprogramforj1=1:jVbi=K*T*log(NA*ND/ni^2);X=(2*KS*e0)/q*(Vbi-VA);xn=sqrt(X*NA/(ND*(NA+ND)));xp=sqrt(X*ND/(NA*(NA+ND)));%p-sidex=linspace(-xp,0);Vp=(q*NA/(2*KS*e0))*(x+xp).^2;Ep=-(q*NA/(KS*e0))*(x+xp);%n-sidexx=linspace(0,xn);Vn=Vbi-VA-(q*ND/(2*KS*e0))*(xn-xx).^2;En=-(q*ND/(KS*e0))*(xn-xx);xxx=

3、[xx,2*xn];Vn=[Vn,Vn(100)];ifj1==1E0=-(q*NA/(KS*e0)*xp);V0=Vbi-VA;Emin=1.1*E0;Vmax=1.1*V0;xmax=2.5*max(xn,xp);fprintf('RESULT')NA,ND,VA,Vbi,xn,xp,W=xn+xp,E0,V0elseendsubplot(2,1,1),plot(x,Vp,xxx,Vn);axis([-xmax,xmax,0,Vmax]);gridonxlabel('x(cm)');ylabel('V(volts)');holdonsubplot(2,1,2),plot(x,E

4、p,xx,En);axis([-xmax,xmax,Emin,0]);gridonxlabel('x(cm)'),ylabel('E(volts/cm)');holdonVA=VA/2;endExercise6.9%Initializationclcclearall%evaluationT=300;q=1.6e-19;k=2.38e-23;%mainprogramVA=linspace(-0.5,0.1);I1=exp(q*VA./(k*T))-1;I2=I1-1;I3=I2-1;I4=I3-1;I=[I1;I2;I3;I4];%plotfigureplot(VA,I)axis([-0.5

5、0.1-66]);gridxlabel('VA(volts)');ylabel('I/I0');text(-0.31,-0.7,'IL/I0=0');text(-0.31,-1.7,'IL/I0=-1');text(-0.31,-2.7,'IL/I0=-2');text(-0.31,-4.7,'IL/I0=-4');holdonExercise7.6%Initializationclcclearall%evaluationA=6e-3;q=1.6e-19;Kse0=11.8*8.85e-14;%InputC=rand(1,23);VA=rand(1,23);CJ=rand(1,23);NB

6、=rand(1,23);x=rand(1,23);forj=1:23C(j)=input('inputthecapacityC=');VA(j)=input('inputthereversevoltageVA=');CJ(j)=C(j)-2;end%mainprogramforj=1:23ifj>=2NB(j)=2/((q*Kse0*A^2)*abs((CJ(j)-CJ(j-1))/(VA(j)-VA(j-1))));x(j)=Kse0*A/CJ(j);elseendend%plotplot(x([2,23]),NB([2,23]))axis([2e-167e-161e341.2e36])

7、;gridxlabel('x(cm)'),ylabel('NB(/cm3)');holdon