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

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
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
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

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 & 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....
View Full Document

This note was uploaded on 12/02/2011 for the course ELEG 646 taught by Professor Staff during the Spring '08 term at University of Delaware.

Ask a homework question - tutors are online