Assume that a GaAs semiconductor has a lattice constant a=7.5 Å, and the atoms of Ga and As are hard spheres. The volume density of Ga ?
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A: Given that, ND=1015 cm-3no=1015 cm-3 δn=δp=1018 cm-3
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A: SOlution: given that Nd =1016 atms/cm3 T = 300 K
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