The materials copper, silicon and diamond have electrical conductivities (o) in the solid state at room temperature of 6

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The Materials Copper Silicon And Diamond Have Electrical Conductivities O In The Solid State At Room Temperature Of 6 1 (38.14 KiB) Viewed 22 times

The materials copper, silicon and diamond have electrical conductivities (o) in the solid state at room temperature of 6x10², 103, and 10-11, respectively in units of 12-m-1. (a) What can you deduce about the way electrons occupy the band structure for each material? Illustrate your answer with sketches of the energy spectrum (energy band diagram) in each case. (b) If small quantities of phosphorus (valence 5) were added to pure silicon (valence 4), would you expect the room temperature electrical conductivity of the resulting mate- rial to be greater than, less than, or the same as that of pure silicon? Please explain why.