ENGRI1110_Lect3_Sep2_09_posted - "After the...

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“After the Transistor, a Leap Into the Microcosm” http://www.nytimes.com/2009/09/01/science/01trans.html Given all the challenges that each new chip-making technology faces, as well as the  industry’s sharp decline in investment, it is tempting to suggest that the smaller, faster,  cheaper trend may indeed be on the brink of slowing if not halting Dr. Frances Ross, an IBM researcher, is growing a crop of mushroom- shaped silicon nanowires that may one day become a basic building block  for a new kind of electronics.
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Pure Si (Intrinsic) Free Electrons Holes 1.1  e V Band Gap Valence Band Conduction Band Physicist’s View                                  Chemist’s View
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Extrinsic (n-type) 
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Extrinsic (p-type)
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p-n junction (Diode)
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ENGRI1110_Lect3_Sep2_09_posted - "After the...

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