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Unformatted text preview: − − , respectively. (a) What is the intrinsic carrier concentration in silicon? (b) What fraction of atoms in silicon contributes a conduction electron? ( a Si =0.543 nm) (c) Estimate the electrical conductivity of silicon doped with boron at a concentration of -3 17 cm 10 1 × . (d) Estimate the electrical current that will flow through a bar of silicon that is 10 μ m long and 5 nm in diameter, with an electrical conductivity of -1-1 6 cm 10 4 Ω × − , when 1 V is applied down the length of the bar....
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This note was uploaded on 12/13/2011 for the course CHE 350 taught by Professor Sanchez during the Spring '08 term at University of Texas at Austin.
- Spring '08
- Chemical Engineering