a) Draw the energy levels (including the Fermi levels) of a non-degenerate p-n junction with a...

a) Draw the energy levels (including the Fermi levels) of a non-degenerate p-n junction with a reverse bias of Vr. Draw the hole and electron concentrations as well. b) If this pn junction is used as a photodetector, what is the threshold wavelength of this detector? Will lower or higher wavelengths be detected by this detector?

Expert Solution

genius_generous answered 1 year ago

Consider a system of distinguishable particles having only three non-degenerate energy levels separated by an energy...

Consider a system of distinguishable particles having only three non-degenerate energy levels separated by an energy that is equal to the value kT at 25.0K. Calculate: 1) the ratio of populations in the states at a. 1.00K 2) the molecular partition function at 25.0K 3) the molar energy at 25.0K 4) the molar heat capacity at 25.0K 5) the molar entropy at 25.0K

condidering a forward bias n-p junction and reverse bias n-p junction, which one produces a rectifying...

condidering a forward bias n-p junction and reverse bias n-p junction, which one produces a rectifying action? explain how it produces the rectifying action

The three lowest non-degenerate energy levels of a certain molecule areE1 =0,E2 =?>0,andE3 =10?. (a)Showthatatsufficientlylow temperatures...

The three lowest non-degenerate energy levels of a certain molecule areE1 =0,E2 =?>0,andE3 =10?. (a)Showthatatsufficientlylow temperatures (how low?) only levels E1 and E2 are populated. Estimate this temperature kTc in terms of the number N of molecules and ?. Use Boltzmann statistics. (b) At any temperature T, what is the average energy of a molecule?

Define the limitations in the operation conditions of a p-n junction.

describe energy band structure and Fermi distribution function of intrinsic semiconductor, n-type semiconductor and p-type semiconductor.

Explain how a p-n junction acts as a “one-way street” for current. Use energy-level diagrams.

Explain how a p - n junction works like a solar cell.

Consider a Si p-n junction connected p-type and n-type semiconductors each doped 1017 /cm3 concentration, in...

Consider a Si p-n junction connected p-type and n-type semiconductors each doped 1017 /cm3 concentration, in temperature 50K, 350K, 650K Suppose occur energy state of conduction band quantization due to the junction make very small. If Si p-n junction has only three DOS(density of state) in conduction band and valence band, Discuss band diagrams and I-V curve.

Explain how a p-n junction can act as an LED, and if configured correctly as a...

Explain how a p-n junction can act as an LED, and if configured correctly as a laser. (What are the requirements for it to act as a laser?)

a. Draw an energy diagram showing the first 5 energy levels in a hydrogen atom. Label...

a. Draw an energy diagram showing the first 5 energy levels in a hydrogen atom. Label the value of "n", and the value of the electrons total energy in this level b. Consider an electron which transitions between n=4 and n=2. What is the energy of the emitted photon? (Use the diagram to answer this question) c. What is the wavelength of the emitted photon? What is its color?

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