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Science Forum Index » Optics Forum » Light Duality
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| AES |
 Posted: Thu Mar 27, 2008 5:15 pm |
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In article
<a66449d9-aff2-4b6d-84f4-182b55f55e2f@s37g2000prg.googlegroups.com>,
Quantum Ray <QuantumRay@gmail.com> wrote:
Quote:
What about the name "hole", as in an electron-hole pair generated when
a photon, err, I mean a light quanta with proper energy (wavelength),
is absorbed by semiconductor? Actually I was thinking about this
process when I posted the original message.
A hole in a semiconductor is in fact really and truly particle-like --
remarkably and more or less totally particle-like, in fact: has distinct
mass, charge, diffusion coefficient, mobility, etc.
But then, it is actually a missing electron -- a true particle -- in a
valence or conduction band; and has no connection to photons as
particles.
Shockley's "parking garage" analogy is still a vivid demonstration of
the brilliant teaching abilities he actually had. |
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