Dr. Alan Doolittle

 

 

Click on the following links to view animations that aid in understanding difficult concepts.  These animations are in Quicktime© format.  The University of Iowa link to the right also has several useful visualization aids.

 Most Animations Downloads require Quicktime© version 4.1 or higher

Click on a crystal structure to see animation.

Equivalent Crystal Planes

Miller Indexes Examples

Your the electron moving through the lattice experiencing different forces than you would in free space.  Motivation for effective mass concept.. 

Carrier flow in a metal

Carrier flow in a semiconductor

Carrier flow in a intrinsic semiconductor

Band Populations as a function of temperature in an n-type semiconductor. Note that the fermi-energy actual shifts position in the bandgap and is not accurately depicted here.

Band Populations as a function of temperature in an p-type semiconductor. Note that the fermi-energy actual shifts position in the bandgap and is not accurately depicted here.

p-n diode carrier flow in equilibrium (no net current flow)

p-n diode carrier flow in forward bias

p-n diode carrier flow in reverse bias

University of Iowa Java Link with more visualization examples

Additional Visualization Links

Similar Material coverage to that found in ECE3040

Dr. Alan Doolittle

208 Pettite MiRC Building

Address:

777 Atlantic Dr.

Atlanta, GA 30332-0250

Phone & Fax: 404 894-9884

alan.doolittle@ece.gatech.edu

Animations and Concept Visualization Page