Concepts Of Physics MCQ Edition [Volume 2]PhysicsSemiconductors and Semiconductor Devices

Within a p - n junction,

Options

Aholes and conduction electrons continuously recombine throughout the material
Bholes and conduction electrons continuously recombine throughout the material except in the depletion region
Cnew holes and conduction electrons are generated continuously throughout the material except in the depletion
Dnew holes and conduction electrons are generated continuously throughout the material

Correct answer

D. new holes and conduction electrons are generated continuously throughout the material

Step-by-step solution

In a p - n junction, thermal energy continuously generates electron-hole pairs throughout the entire material, including the depletion region. Simultaneously, the conduction electrons and holes continuously recombine throughout the entire material to maintain thermal equilibrium. Thus, both generation and recombination of charge carriers occur continuously everywhere in the p - n junction.

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