1. (15 pts) You have a Si p'-n junction with both recombination (Chap 2, Eqn. 73)...
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1. (15 pts) You have a Si p'-n junction with both recombination (Chap 2, Eqn. 73) and diffusion currents (Shockley diode equation). Assume eE=11.9 x 8.85 x 10"F/cm, n=10" cm', NA=10 cm", No=5x10" cm', tp=1 ms, and u=400 cm/Vs. The current density in the diode can be modeled as a sum of the recombination and diffusion currents. a. What are both current densities at 0.15 V and which dominates? b. What are both currents densities at 0.65 V and which dominates? c. Plot the total current density versus applied voltage from 0.1-4V in a log-linear plot. Label the two different current regimes. 1. (15 pts) You have a Si p'-n junction with both recombination (Chap 2, Eqn. 73) and diffusion currents (Shockley diode equation). Assume eE=11.9 x 8.85 x 10"F/cm, n=10" cm', NA=10 cm", No=5x10" cm', tp=1 ms, and u=400 cm/Vs. The current density in the diode can be modeled as a sum of the recombination and diffusion currents. a. What are both current densities at 0.15 V and which dominates? b. What are both currents densities at 0.65 V and which dominates? c. Plot the total current density versus applied voltage from 0.1-4V in a log-linear plot. Label the two different current regimes.
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