Consider an experiment where excess electrons are generated in a burst at t = 0 and x
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Consider an experiment where excess electrons are generated in a “burst” at t = 0 and x = x0 in a semiconductor, resulting in the concentration profile n(x) shown in the figure below.
Draw the shape of the concentration profile n(x) as a result of the one-dimensional diffusion in the x-direction. No other external forces are present. Draw several shapes corresponding to several times after the initial “burst.”
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n(x)
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