# A calculate the position of the fermi energy level

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Unformatted text preview: p0, n0, and Na. First, we must find the intrinsic concentration. This leads to 3/ 2 "E% "E% "T% ni = N c N v exp \$ − G ' = 7.9 × 1018 \$ ' exp \$ − G ' # 300 & # 2 k BT & # 2 k BT & = 1.36 × 1012 cm −3 Then, we can write p0 = ni2 n0 2 , 4n0 = (1.36 × 1012 )2 , n0 = 6.8 × 1011 cm −3 p0 = 4n0 = 2.72 × 1012 cm −3 p0 − n0 = N a , N a = 3n0 = 2.04 × 1012 cm −3 4.49 Consider silicon at T = 300 K with donor concentrations of Nd =...
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