question archive An unknown semiconductor has bandgap energy Eg = 1
An unknown semiconductor has bandgap energy Eg = 1
Subject:Electrical EngineeringPrice:2.86 Bought8
An unknown semiconductor has bandgap energy Eg = 1.2eV and Nc = Nv (effective density of states in the conduction and valence bands are equal). It is doped with 1015 cm-3 donors. Assume that all donors are fully ionized. Given that EF is 0.25 eV below Ec, calculate ni (intrinsic carrier concentration) and the concentration of electrons and holes in the semiconductor at 300K. Also draw the simplified energy band diagram labelling the location of important energy levels. (k=Boltzmann constant (k=8.6*10-5 eV/K))
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