Hydrogen is used in some semiconducting devices to improve their
performance. Consider a material in which...
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Physics
Hydrogen is used in some semiconducting devices to improve theirperformance. Consider a material in which atomic hydrogen (H)diffuses at 1.8 × 10-24 m2/s at 329 K.
1) When in use, the device is exposed to a large electric field.If the force on each charged hydrogen nucleus is 10 -11N, use the fluctuation-dissipation relation to find out how fastthey drift in the field at 329 K.
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4.0 Ratings (428 Votes)
The question is a fairly straight forward one The diffusionconstant or the diffusivity is just the rate at which moleculesdiffuse from a higher concentration to lower concentration due torandom motion So higher the diffusivity the faster the moleculeswill diffuse through our device
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