Question:

A pure Si sample at 20°C has density 5x10^28. Number of

Last updated: 7/10/2022

A pure Si sample at 20°C has density 5x10^28. Number of

A pure Si sample at 20°C has density 5x10^28. Number of thermally generated electron-hole pairs are 1.5 x 10^16 at this temperature. Now, the pure Si sample is doped with Al atoms at the rate of 1 atom per 10^7 Si atoms, which results increment in conductivity increases at the rate of 5% perºC. Compute the conductivities of pure Si, extrinsic Si and at 34°C.

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