Question: A Si sample with 1 0 1 5 c m 3 donors is uniformly optically excited at room temperature such that 1 0 1 9

A Si sample with 1015cm3 donors is uniformly optically excited at room temperature such that 1019cm3 electron-hole pairs are generated per second. Find the separation of the quasi-Fremi levels and the change of conductivity upon shining the light. Electron and hole lifetimes ar both 10s.Dp=12cm2s.
A Si sample with 1 0 1 5 c m 3 donors is

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Electrical Engineering Questions!

Q:

In chemistry one occasionally uses a flame test to determine the presence of certain chemicals. If we put a small spoon with sodium in it into a Bunsen burner ame just above the tip (T ~ 1500 K) it...

Q:

Calculation and Questions 1. Calculate the initial rate; [S2O82]/t, for experiments 1,2,3 and 4. Remember that the rate with respect to S2O822 can't be calculated directly from the initial...

Q:

answer the question 3. BAND DIAGRAM A piece of Si uniformly doped with Np = 5 x 10'cm~$ donors is at equilibrium at room temperature (T = 300K, n; = 1.5x 10!cm~3). (A) What is the electron and hole...

Q:

Story plot: tall, square, symmetric. For each technique, give the relevant matrix equations to obtain the solution x, and point out the properties of the matrices involved. Highlight one potential...

Q:

Describing Data Once we have collected data from surveys or experiments, we need to summarize and present the data in a way that will be meaningful to the reader. We will begin with graphical...

Q:

The experimental result differs from the assumption. The result shows that the ring oscillator frequencies can be grouped into two groups, where the first group is the high frequency group for the...

Q:

Explain how the principles of quantum mechanics are able address the issues. The development of quantum mechanical theory stems from several issues that could not be addressed by the principles of...

Q:

Answer the Activity 2 and the assignment part. 2. Click the lamp to turn on the light. When reading currents, click on the red button each time the brightness or color is changed. Read the texts so...

Q:

Answer appropriately 12. [-/9 Points] DETAILS MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER This question has several parts that must be completed sequentially. If you skip a part of the question, you...

Q:

can someone help me with the calculations not sure what "b" means? Percentage yield of crude product Show calculations: Melting point of crude product ]C TLC analysis: Sketch the results of your TLC...

Q:

Bill's Roast Beef sells 8 times as many sandwiches as Pete's Deli. The difference between their sales is 518 sandwiches. How many sandwiches did each sell?

Q:

An astronaut is rotated in a horizontal cen- trifuge at a radius of 5.0 m. i What is the astronaut's speed if the centripetal acceleration has a magnitude of 6.0g? (g is the gravitational...

Q:

The impact of inflation on the income of an ice - cream shop is an example of what type of risk? Pure Systematic Speculative

Q:

Question #2. (25 marks) Barca Company's B/S at the end of 2019 included the following items: Current assets Land Building Equipment $1,326,000 Current liabilities $1,224,000 36,000 Bonds payable...