What exactly is a concentration of acceptor in p-type semiconductor

In summary, the concentration of acceptor in p-type semiconductor, represented by the symbol Na, refers to the level of dopant atoms such as boron or gallium used to create p-type silicone. The concentration of acceptor sites is determined by the amount of dopant added during the doping process. The symbol Na should not be confused with sodium (Natrium).
  • #1
MissP.25_5
331
0
What exactly is a concentration of acceptor in p-type semiconductor? The symbol is Na.
Lets say there's a Silicone, and it has 3 valence electrons, when it receives electrons (releases hole), it becomes negatively ionized, right? So that should mean Silicone is an acceptor, right? But what is concentration of acceptor?
 
Physics news on Phys.org
  • #3
Simon Bridge said:
Na = sodium. You'd normally use boron (B) or gallium (Ga) to make silicone (Si) p-type.

The concentration of acceptor sites depends on the doping.
http://electronics.howstuffworks.com/diode1.htm

No, you misuunderstood me. I didn't mean Na as "Natrium" but just a symbol for concentration of acceptor in p-type semiconductor. It's actually Na.
 
  • #4
OK, but the answer still stands.
 
  • #5


In a p-type semiconductor, the concentration of acceptor refers to the number of acceptor atoms present in the semiconductor material. In this case, the symbol Na represents the concentration of acceptor atoms, specifically the number of sodium atoms present in the semiconductor material.

In a p-type semiconductor, the acceptor atoms, such as phosphorus or boron, have one less or one more valence electron than the semiconductor material, creating a positively charged "hole" in the material. This hole can then accept an electron from a neighboring atom, allowing for the movement of charge and contributing to the overall conductivity of the material.

The concentration of acceptor atoms is an important factor in determining the electrical properties of a p-type semiconductor, as it affects the number of charge carriers available for conduction. A higher concentration of acceptor atoms results in a higher density of charge carriers and therefore a higher conductivity.

In summary, the concentration of acceptor in a p-type semiconductor refers to the number of acceptor atoms present, which play a crucial role in creating a positively charged "hole" and contributing to the overall conductivity of the material.
 

1. What is a concentration of acceptor in p-type semiconductor?

A concentration of acceptor in p-type semiconductor refers to the amount of doping atoms that are intentionally added to the semiconductor to create a positive charge carrier, or hole. These acceptor atoms have one less valence electron than the atoms in the semiconductor, creating a deficiency of electrons and resulting in a net positive charge.

2. How does the concentration of acceptor affect the conductivity of p-type semiconductor?

The higher the concentration of acceptor atoms in a p-type semiconductor, the higher its conductivity. This is because the acceptor atoms create more holes, which can move freely through the semiconductor and contribute to the flow of electric current.

3. What is the relationship between the concentration of acceptor and the band gap of a p-type semiconductor?

The concentration of acceptor atoms has an inverse relationship with the band gap of a p-type semiconductor. As the concentration of acceptor increases, the band gap decreases. This is because the acceptor atoms introduce impurities into the semiconductor, reducing the energy required for electrons to jump from the valence band to the conduction band.

4. How is the concentration of acceptor controlled in p-type semiconductors?

The concentration of acceptor in p-type semiconductors can be controlled through the process of doping. Doping involves intentionally adding impurity atoms, such as boron or aluminum, during the manufacturing process of the semiconductor. The amount of impurity atoms added determines the concentration of acceptor in the final product.

5. What happens to the concentration of acceptor at different temperatures in p-type semiconductors?

The concentration of acceptor in p-type semiconductors decreases with increasing temperatures. This is because at higher temperatures, the thermal energy is enough to ionize some of the acceptor atoms, freeing them from their bound state and reducing the overall concentration of acceptor atoms in the semiconductor.

Similar threads

Replies
3
Views
1K
  • Advanced Physics Homework Help
Replies
1
Views
799
Replies
1
Views
891
  • Atomic and Condensed Matter
Replies
2
Views
2K
Replies
8
Views
989
  • Introductory Physics Homework Help
Replies
1
Views
2K
  • Engineering and Comp Sci Homework Help
Replies
2
Views
2K
Replies
2
Views
2K
  • Materials and Chemical Engineering
Replies
1
Views
2K
  • Advanced Physics Homework Help
Replies
7
Views
1K
Back
Top