/cm?. The minority carrier lifetime is Tn = 10-6 second at T = 300K. At time t=0 the earth is hit by a mysterious ray that momentarily wipes out all minority carriers whereas majority carriers are unaffected. Assume that the Si wafer is at equilibrium prior to the ray strike. a) What is the electron concentration prior to the ray strike, i.e. at t <0 ? b) What happens after the minority carrier is wiped out? Explain. c) Starting from the appropriate differential equation, derive An (t) for t > 0.
/cm?. The minority carrier lifetime is Tn = 10-6 second at T = 300K. At time t=0 the earth is hit by a mysterious ray that momentarily wipes out all minority carriers whereas majority carriers are unaffected. Assume that the Si wafer is at equilibrium prior to the ray strike. a) What is the electron concentration prior to the ray strike, i.e. at t <0 ? b) What happens after the minority carrier is wiped out? Explain. c) Starting from the appropriate differential equation, derive An (t) for t > 0.
Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter1: Atomic Structure
Section: Chapter Questions
Problem 6RQ: How many valence electrons are generally contained in materials used for insulators?
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