Question A: Electrons are being steadily injected into a region of p-type silicon (connected to othe

Question A: Electrons are being steadily injected into a region of p-type silicon (connected to other devices, the details of which are not important for this question). In the steady state, the excess-electron concentration profile shown in the following figure is established in the p-type silicon region. Here A????1excessA????1 means over and above the thermal-equilibrium concentration (in the absence of electron injection), denoted np0. If NA = 1017/cm3 , ni = 1.5 X 1010/cm3 , Dn = 35 cm2 /s and W = 0.085 micrometer, find the density of the current that will flow in the x direction

 

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