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In semiconductor physics, what are 'holes'?

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Question: In semiconductor physics, what are \'holes\'?

Options:

  1. Negative charge carriers
  2. Positive charge carriers
  3. Neutral particles
  4. Electrons in the conduction band

Correct Answer: Positive charge carriers

Solution: 

Holes are considered positive charge carriers in a semiconductor, representing the absence of an electron.

In semiconductor physics, what are 'holes'?

Practice Questions

Q1
In semiconductor physics, what are 'holes'?
  1. Negative charge carriers
  2. Positive charge carriers
  3. Neutral particles
  4. Electrons in the conduction band

Questions & Step-by-Step Solutions

In semiconductor physics, what are 'holes'?
  • Step 1: Understand that semiconductors are materials that can conduct electricity under certain conditions.
  • Step 2: Know that in a semiconductor, electrons can move and carry negative charge.
  • Step 3: Realize that when an electron moves away from its position, it leaves behind an empty space.
  • Step 4: This empty space where the electron used to be is called a 'hole'.
  • Step 5: Since the hole represents the absence of a negatively charged electron, it behaves like a positive charge.
  • Step 6: Therefore, holes can move through the semiconductor and are considered positive charge carriers.
  • Holes in Semiconductors – Holes are the absence of electrons in a semiconductor lattice, acting as positive charge carriers.
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