If the n-type Ge is brought into contact with p-type Ge to form a pn junction, sketch the band diagram of the resulting diode. Label Ec, Ev, Er, the n-region, the p-region, the depletion region and...

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Extracted text: If the n-type Ge is brought into contact with p-type Ge to form a pn junction, sketch the band diagram of the resulting diode. Label Ec, Ev, Er, the n-region, the p-region, the depletion region and the potential barrier of the diode. Show the changes that occur if a forward bias is applied to the diode.