Find the valence band energy of the uppermost band

Assignment Help Physics

Reference no: EM132192947

Question: The Fermi energy level for a particular material at T= 300 K is 6.25 eV. The electrons in this material follow the Fermi-Dirac distribution function.

(a) Find the probability of an energy level at 6.50 eV being occupied by an electron.

(b) Repeat pan(a)if the temperature is increased toT= 950 K. (Assume that EF is a constant.)

(c) Calculate the temperature at which there is a 1 percent probability that a state 0.30 eV below the Fermi level will be empty of an electron.

(d) If the material is an intrinsic semiconductor find the valence band energy of the uppermost band.

(e) Plot an energy band diagram of the material atT= 300 K and indicate all the necessary parameters with corresponding numerical values. Please give a title to your sketch and label all axes appropriately.

Reference no: EM132192947

Questions Cloud

Analyze the features that the ldcs have in common : Select two Less Developed Countries (LDCs) and assess if there are any factors that are common to both as far as their development is concerned.

What was the velocity of the bullet : A 0.14 kg bullet traveling at speed hits a 7.9 kg block of wood and stays in the wood. The block with the bullet imbedded in it moves forward with a velocity.

Did they take inequality of the sexes for granted : Write a description of how you lived your life a day after your hypothetical change in gender as you answer the following questions:

By what mechanisms does energy enter and exit the lightbulb : Lightbulb A is marked "40.0 W 120 V," and lightbulb B is marked "60.0 W 120 V." These labels mean that each lightbulb has its respective power delivered.

Find the valence band energy of the uppermost band : The Fermi energy level for a particular material at T= 300 K is 6.25 eV. The electrons in this material follow the Fermi-Dirac distribution function.

Apply your own experiences to your interviewees responses : Discuss the interview in an organized paper, supporting your analysis of the interview with the text, lectures, and appropriate other resources.

Find the ratio of the periods of the satellites : Two satellites, A and B, are in different circular orbits about the earth. The orbital speed of satellite A is sixty-six times that of satellite B.

What is the amplitude of b : The electric field amplitude near a certain radio transmitter is 3.11x10^(-3) V/m. How does this compare in magnitude with the Earth's magnetic field?

Define or describe what the green revolution is : Define or describe what the Green Revolution is, and what impacts it had. Give a detailed accounting of the considerations for and against the thesis.

User Account

All Pages