in a p type germanium ni=2.1×10^19m^-3 denisty of baran 4.5^23 atoms/m^3 the electron nd holes mobility are. 4 nd. 2m^2v^-2s^-1 resp. what is its conductivity befor nd after additiin of boran atoms

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Chapter9: Condensed Matter Physics
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Problem 68P: What is the longest wavelength for a photon that can excite a valence election into the conduction...
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in a p type germanium ni=2.1×10^19m^-3 denisty of baran 4.5^23 atoms/m^3 the electron nd holes mobility are. 4 nd. 2m^2v^-2s^-1 resp. what is its conductivity befor nd after additiin of boran atoms

 

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