A 2-cm2 wafer of pure silicon is irradiated with light having a wavelength of 775 nm. The

Question:

A 2-cm2 wafer of pure silicon is irradiated with light having a wavelength of 775 nm. The intensity of the light beam is 4.0 W/m2 and every photon that strikes the sample is absorbed and creates an electron–hole pair.

(a) How many electron–hole pairs are produced in one second?

(b) If the number of electron–hole pairs in the sample is 6.25 × 1011 in the steady state, at what rate do the electron–hole pairs recombine?

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Fundamentals of Ethics for Scientists and Engineers

ISBN: 978-0195134889

1st Edition

Authors: Edmund G. Seebauer, Robert L. Barry

See More Books

Question Posted: Aug 02, 2011 02:30 PM

See More Questions

A sample of hydrogen atoms is irradiated with light with wavelength 8S.5 nm, and electrons are observed leaving the gas. (a) If each hydrogen atom were initially in its ground level, what would be...
How many nonbonding electron pairs are there in each of the following molecules: (a) (CH3)2S, (b) HCN, (c) H2C2, (d) CH3F?
A photon of wavelength 0.45000 nm strikes a free electron that is initially at rest. The photon is scattered straight backward. What is the speed of the recoil electron after the collision?
Kyoko is a hard-working college sophomore. One Thursday, she decides to work nonstop until she has answered 220 practice problems for her physics course. She starts work at 8:00 AM and uses a table...
A partially completed worksheet for Roy Anderson, CPA, for the month ending June 30, 2019, is shown below. INSTRUCTIONS 1. Record the balances as of June 30 in the ledger accounts. 2. Prepare the...
Define a system and simplify the open-system energy balance (Equation 7.4-15) for each of the following cases. State when possible whether nonzero heat and shaft work terms are positive or negative....
The Royal Bank of Canada (RBC) is the largest bank in Canada and employs about 79,000 full-time and part-time employees who serve 15 million customers in Canada, the United States, and 44 other...
a. Answer (a) through (c) from Exercise 11.1 using the results in column (3). b. Sketch the predicted probabilities from the probit and linear probability in columns (1) and (3) as a function of...
From the following choices, which is the best example of common property? A pet dog A parcel of land without a house but recently purchased by a builder 2022 Tesla Model 3 Air
You are an equity analyst at an investment bank. You have been asked to perform valuation of Novice Ltd., a company that specialises in the media industry. You have been provided with the following...
Estimate the fraction of free electrons in copper that are in excited states above the Fermi energy at (a) Room temperature of 300 K and (b) 1000 K.
(Multiple Choice) (1) A metal is a good conductor because the valence energy band for electrons is (a) Completely full. (b) Full, but there is only a small gap to a higher empty band. (c) Partly...
Ethanol is produced from ethylene via the gas-phase reaction C 2 H 4 (g) + H 2 O(g) C 2 H 5 OH(g) Reaction conditions are 400 K and 2 bar. (a) Determine a numerical value for the equilibrium...
Define subjective brightness and brightness adaptation?
Write Down The Properties Of Haar Transform?
Explain Spatial Filtering?
What Is Maximum Filter And Minimum Filter?
Name The Categories Of Image Enhancement And Explain?
Suggest, step by step, how you would select: (a) a sample of 150 students at your college and university; (b) a sample of male and female workers to compare hourly wages in (select job/work).
Using the information in P11-2B, compute the overhead controllable variance and the overhead volume variance. Data From Problem 11-2B: Huang Company uses a standard cost accounting system to account...
Define density, and explain why the unit for density is called a derived SI unit.
A coin is placed 11.0cm from the axis of a rotating turntable of variable speed. When the speed of the turntable is slowly increased, the coin remains fixed on the turntable until a rate of 36 rpm is...
Determine the time it takes for a satellite to orbit the Earth in a circular near-Earth orbit. A near-Earth orbit is one at a height above the surface of the Earth which is very small compared to the...
At what minimum speed musty a roller coaster be traveling when upside down at the top of a circle (Fig. 5-34) so that the passengers will not fall out? Assume a radius of curvature of 7.4m.
The plant asset and accumulated depreciation accounts of Pell Corporation had the following balances at December 3 1 , 2 0 2 0 : Transactions during 2 0 2 1 were as follows: a . On January 2 , 2 0 2...
All else equal, a company's P/E ratio will ____________ when the discount rate ___________. rise, rise fall, rise fall, falls cannot be determined All else equal, a company's P/E ratio will _____...
The cost of partially completed goods at the end of the period would be Ending work in process inventory Cost of goods sold Beginning finished goods inventory Beginning work in process inventory

A 2-cm2 wafer of pure silicon is irradiated with light having a wavelength of 775 nm. The

Question:

Step by Step Answer:

a The number of photonss that hit the surface N 40 2 10 4 16 10 19 1240775 ...View the full answer

Fundamentals of Ethics for Scientists and Engineers

Students also viewed these Electricity and Magnetism questions