Question

The merging of a free electron and a hole is called

Answer 1

Answer:

The merging of a free electron and a hole is called. A. Covalent bonding. Lifetime. Recombination

Answer 2

The answer is recombination:

Explanation:

• the merging of a free electron and hole is recombination.

• When a semiconductor receives external energy, the valence band electrons are lifted to the conduction band and become free, leaving holes (vacancies) in the valence band.
• The orbits of free electrons in the conduction band are bigger than the orbits of holes in the valence band.
• On rare occasions, one atom's conduction-band orbit intersects the entire orbit of another.
• The conduction-band electron falls into a hole as a result of this.
• Recombination is the merger of a free electron with a hole.
• The hole does not move when recombination occurs; instead, it just vanishes.