A hole and electron in close proximity would tend to________

A hole and electron in close proximity would tend to________

Right Answer is:

Attract each other

SOLUTION

A hole and electron in close proximity would tend to attract each other.

Detailed Explanation

⇒ An electron excited into the conduction band is a negatively charged particle in a neutral medium which will interact with the resulting hole created in the valence band (positively charged particle).

⇒ This pair of charged particles are created locally, and they attract each other by the Coulomb force. They form a unit called the exciton.

⇒ In an exciton, the electron and the hole attract each other and move together as a single particle consisting of a coupled (i.e., not free) electron-hole pair.

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