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In: Physics

Suppose we can adjust a Q11B.11 Suppose we can adjust a semiconductor's band gap from 1.0...

Suppose we can adjust a Q11B.11 Suppose we can adjust a semiconductor's band gap from 1.0 eV to 2.0 eV by changing a certain impurity's concentration. (a) Other things being equal, does the semi- conductor become more conductive or less conductive as we do this? (b) By about what factor at room temperature where kBT、0.026 eV)? Explain your reasoning. (Hint: (where k T 0.026 eV)? Explain your reasoning. (Hint: How much more or less likely is it for an energy level in the conduction band to be occupied by an electron?)

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