semiconductor physics

Consider a p-n junction diode when it is forward biased with 2 V. Which of the following is/are the correct magnitude(s) of the energy difference between quasi Fermi-levels, $E_{fn...

The electron mobility $\mu_n$ in a non-degenerate germanium semiconductor at 300 K is $0.38 \mathrm{~m}^2 / \mathrm{Vs}$. The electron diffusivity $D_n$ at 300 K (in $\mathrm{cm}^2...

Consider a MOS capacitor made with p-type silicon. It has an oxide thickness of 100 nm, a fixed positive oxide charge of 10⁻⁸ C/cm² at the oxide-silicon interface, and a metal work...

A non-degenerate n-type semiconductor has 5 % neutral dopant atoms. Its Fermi level is located at 0.25 eV below the conduction band ($E_C$) and the donor energy level ($E_D$) has a...

In a non-degenerate bulk semiconductor with electron density n = 10 16 cm $$-$$3 , the value of E C $$-$$ E Fn = 200 meV, where E C and E Fn denote the bottom of the conduction ban...

Select the CORRECT statements regarding semiconductor devices

Assume electronic charge q = 1.6×10 -19 C, kT/q = 25 mV and electron mobility μ n = 1000 cm 2 /V-s. If the concentration gradient of electrons injected into a P-type silicon sample...

Drift current in the semiconductors depends upon

Under low level injection assumption, the injected minority carrier current for an extrinsic semiconductor is essentially the

The band gap of Silicon at room temperature is:

The band gap of silicon at 300 K is

The intrinsic carrier concentration of silicon sample at 300 o K is $$1.5\times10^{16}/m^3$$. If after doping, the number of majority carriers is $$5\times10^{20}/m^3$$ , minority...

In an intrinsic semiconductor the free electron concentration depends on