Solved: Assume conduction electrons in a semiconductor

Chapter 40, Problem 40.80

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Assume conduction electrons in a semiconductor behave as anideal gas. (This is not true for conduction electrons in ametal.) (a) Taking mass m = 9 X 10-31 kg and temperatureT = 300 K, determine the de Broglie wavelength of asemiconductors conduction electrons. (b) Given that thespacing between atoms in a semiconductors atomic lattice ison the order of 0.3 nm, would you expect room-temperatureconduction electrons to travel in straight lines or diffractwhen traveling through this lattice? Explain.

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