646s10hw7e - concentrations are n i 2 /N o . (iii) the...

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ELEG 646 ; ELEG 446 - Nanoelectronic Device Principles Spring 2010 Homework #7 - due Tuesday, 20 April 2009, in class 1. Problem 4.9 in chapter 4, p. 223 of Muller, Kamins & Chan (3rd edition). 2. Problem 5.10, (a) only in chapter 5, p. 275 of Muller, Kamins & Chan (3rd edition). Hints: (i) to right of light pulse, the short (x<L diff ) regions indicate that the solutions for p (on n side) and n (on p- side) are of linear form: y=mx+b. To left of light pulse, the long region (L 1 > L diff ) indicates exponential solution of n. (ii) the boundary conditions at the contacts (+W, -L1), the carrier
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Unformatted text preview: concentrations are n i 2 /N o . (iii) the boundary condition at x= W/2 is that the difference in fluxes (Ddn/dx) across the slab from x= W/2( ) to x= W/2(+) is = G . [that is, apply Eq. 5.1.4 of text for a delta function] 3. Problem 5.11 in chapter 5, p. 276 of Muller, Kamins &amp; Chan (3rd edition). Homework assignments will appear on the web at: http://www.ece.udel.edu/~kolodzey/courses/eleg646s10.html Note: On each homework and report submission, please give your name, the due date, assignment number and the course number....
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