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###### Semiconductor physics and devices1. E= Eo Ecos I0) . calculate effective mass at k= 0The energy of free electron E= Ec(1 - in 3-Dimension k3 calculate 'density of state' at E= 2Ec

Semiconductor physics and devices 1. E= Eo Ecos I0) . calculate effective mass at k= 0 The energy of free electron E= Ec(1 - in 3-Dimension k3 calculate 'density of state' at E= 2Ec

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