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Unformatted text preview: 2a) What is the numerical value of the equilibrium hole current density at x = 0? Since we are in equilibrium, the current must be ZERO. 2b) What is the numerical value of the equilibrium hole diffusion current density at x = 0? ( 4 ! 1) " 1017 dp
!19
J p = ! qD p
= +1.6 " 10 ( 0.026 " 350 )
diff
dx
10!4
J p = 4.37 ! 103 A/cm2 diff 2c) What is the numerical value of the equilibrium hole drift current density at x = 0? Since the equilibrium current is zero, the drift current must be equal and opposite to the diffusion current. Jp
= !4.37 " 103 A/cm2 drift 2d) What is the numerical value of the equilibrium electric field at x = 0? Jp drift = p ( 0 ) qµ pE ( 0...
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 Fall '08
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