homework 12 solutions

If you have samples of pure si and sb doped si at

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Unformatted text preview: swer. Solution A) B) C) D) E) 3. (From spring 2006 final) The band gap for pure silicon is 1.12 eV. The donor level for Sb doped into silicon is 0.039 eV below the bottom of the conduction band. If you have samples of pure Si and Sb ­ doped Si at room temperature (300 K), (a) which of these materials has the higher electrical conductivity? Why? (b) which has the higher electrical resistivity? Why? Solution (a) Doped Si has the higher electrical conductivity. Due to the small energy...
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