Draw E versus k diagrams and briefly explain the difference between the band structures of GaAs...

Draw E versus k diagrams and briefly explain the difference between the band structures of
GaAs and Si semiconductors.
Calculate the energy (in eV) and wavelength (in nm) of a photon emitted if electron-hole
recombination takes place between bottom of the conduction band and top of the valence band
for each semiconductor. Which recombination process, between GaAs and Si is more efficient?
Briefly explain (Given for Si, Eg= 1.15 eV and for GaAs, Eg= 1.42 eV, Plank’s constant= 4.13567
x 10-15 eV.s. Also, hc= 1240 eV.nm)

Expert Solution

genius_generous answered 2 years ago

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