JEE Main & Advanced Physics Semiconducting Devices P-Type Semiconductor

P-Type Semiconductor

Category : JEE Main & Advanced

These are obtained by adding a small amount of trivalent impurity to a pure sample of semiconductor (Ge).

 

 

 

(1) Majority charge carriers - holes Minority charge carriers - electrons       

(2) \[{{n}_{h}}>>{{n}_{e}};\,{{i}_{h}}>>{{i}_{e}}\]

(3) Conductivity \[\sigma ={{n}_{h}}{{\mu }_{h}}\,e\]  

(4) P-type semiconductor is also electrically neutral (not positively charged)

(5) Impurity is called Acceptor impurity.

(6) Acceptor energy level lies just above the valence band.

 

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