MIT 2.627 Fundamentals of Photovoltaics, Fall 2011
View the complete course: http://ocw.mit.edu/2-627F11
Instructor: Joe Sullivan

Pure silicon has very low conductivity. This tutorial explains how "doping," the addition of very small amounts of elements like P and B to the Si material, create mobile charges that dramatically boost the material's conductivity.

License: Creative Commons BY-NC-SA
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