Question

Simulate the I-V characteristics at three different temperatures: 0°C, 25°C, and 50°C. In MATLAB, for each temperature, separate the forward-bias data (V_d>0) from the reverse-bias ones (V_d<0). For the forward bias I-V characteristics, plot ln⁡〖(I_d 〗) vs V_d of the three temperatures on the same graph. Include your plot here: If we define knee voltage as the voltage when ln⁡〖(I_d)〗=0, find the knee voltages at different temperatures. How does the knee voltage change with temperature? Why does the temperature have such effect on the knee voltage? Does ln⁡〖(I_d)〗 increases with V_d linearly beyond the keen voltage as predicted by the I-V characteristics of an ideal PN junction diode? If not, what’s the difference? For the reverse bias I-V characteristics, plot I_d vs V_d of the three temperatures on the same graph. Include your plot here: Does the I-V characteristics under reverse bias comply with that of an ideal PN junction diode? If not, what’s the difference? How does the temperature affect the I-V characteristics under the reverse-bias?