diffusion of carrier ions
In?semiconductor?physics, the?depletion region, also called depletion layer,?depletion?zone, junction?region, space charge?region?or space charge?layer, is an insulating?regionwithin a conductive, doped?semiconductor?material where the mobile charge carriers have been diffused away
diffusion of charge carriers
the holes from the n-type semiconductor are pushed towards the junction by the positive terminal of the battery. This movement of electrons and holes constitutes a current called reverse saturation current.??The term?saturation?refers to the fact that it reaches its maximum value very quickly and does not change significantly with increase in reverse bias potential.
electric field is maximum
In the middle of the depletion layer of a reverse biased p-n-junction, the electric field is maximum
crystal structure
The difference in variation of resistance with temperature in a metal and semiconductor is due to crystal structure
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ALPHA (?):?It is a large signal current gain in common base configuration. It is the ratio of collector current (output current) to the emitter current (input current).It is a current gain in CB amplifier and it indicates that the amount of emitter current reaching to collector. Its value is unity ideally and practically less than unity. Beta (?): It is a current gain factor in the common emitter configuration. It is the ration of collector current (output current) to base current (output current).