Consider a bar of silicon in which a hole concentration profile described by p(x) =Poe ally is established. Find the hole-current density at x = 0. Let p, = 10"/cm', L, = 1 µm, and D, = 12 cm'/s. If...

Extracted text: Consider a bar of silicon in which a hole concentration profile described by p(x) =Poe ally is established. Find the hole-current density at x = 0. Let p, = 10"/cm', L, = 1 µm, and D, = 12 cm'/s. If the cross-sectional area of the bar is 100 µm²,