Advanced Semiconductor Fundamentals Solution Manual Site

Vbi ≈ 0.85 V

Substituting the values for silicon:

2.1 Calculate the built-in potential barrier in a pn junction. Advanced Semiconductor Fundamentals Solution Manual

Substituting typical values:

where Is is the reverse saturation current, VBE is the base-emitter voltage, and Vt is the thermal voltage. Vbi ≈ 0

where Nc and Nv are the effective densities of states in the conduction and valence bands, respectively, Eg is the bandgap energy, k is the Boltzmann constant, and T is the temperature.

The built-in potential barrier in a pn junction can be calculated using the following equation: VBE is the base-emitter voltage

ni ≈ 1.45 x 10^10 cm^-3

1.1 Determine the intrinsic carrier concentration in silicon at 300 K.