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PNP Biploar Junction Transistor Energy Band Diagram

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Oct18-07, 10:48 PM
P: 296
1. The problem statement, all variables and given/known data
Consider a PNP Biploar Junction Transistor uniformly doped in each region. Sketch the enegy ban ddiagram for the case when the transistor is biased in

a)In thermal equilibrium
b)biased in the active region
c)biased in the cutoff (depletion) region

2. Relevant equations
None, this is a problem asked to sketch (To an approximate scale) the energy band diagram.

3. The attempt at a solution

I've sketched the first two, but neither my book or the notes contained an example of a PNP Bipolar Junction Transistor's energy band diagram at a cutoff region. can anyone show me a site or include a diagram of this?
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