Why is a Pair of Electrons and Holes an Exciton?

  • Context: Graduate 
  • Thread starter Thread starter omri3012
  • Start date Start date
  • Tags Tags
    Pair
Click For Summary
SUMMARY

The discussion clarifies the concept of excitons, which are defined as pairs of electrons and holes treated as a single particle due to their coupling. This treatment is analogous to how atoms are considered single entities despite comprising multiple subatomic particles. The coupling between the electron and hole allows for their combined behavior to be observed and analyzed as one entity, reinforcing the validity of this classification.

PREREQUISITES
  • Understanding of basic quantum mechanics concepts
  • Familiarity with semiconductor physics
  • Knowledge of particle interactions and coupling
  • Basic comprehension of atomic structure
NEXT STEPS
  • Research the properties of excitons in semiconductor materials
  • Explore the role of electron-hole pairs in photonic applications
  • Study the mathematical models describing particle coupling
  • Investigate the implications of excitons in quantum computing
USEFUL FOR

Physicists, materials scientists, and students studying semiconductor physics who seek to understand the behavior of excitons and their applications in technology.

omri3012
Messages
60
Reaction score
0
hey,

i can't understand what is the motivation of defining pair of hole and electron as
a single particle, exciton. thus they seem to have distinct motion and space. so
why still we treat them as excitons?
 
Physics news on Phys.org
omri3012 said:
hey,

i can't understand what is the motivation of defining pair of hole and electron as
a single particle, exciton. thus they seem to have distinct motion and space. so
why still we treat them as excitons?

Because they are still coupled together and can be treated as "one".

There's nothing unusual here. You treat a collection of electrons, protons, and neutrons as "one" entity and called it an 'atom'. As long as there's some form of coupling that allows us to treat a system as being an entity (and back it up with valid observations), then then treatment is perfectly fine.

Zz.
 
thanks,

that was very helpful :smile:

omri
 

Similar threads

Undergrad Exciton Bohr Radius: What is It & Why Does it Matter?
  • · Replies 4 ·
Replies
4
Views
10K
Graduate Excitons: Opposite Movements of Bound Electron-Hole Pairs
  • · Replies 7 ·
Replies
7
Views
3K
Graduate Can We Have Less Than One Exciton? Understanding Electron-Hole Pairs
  • · Replies 4 ·
Replies
4
Views
3K
Graduate Electrostatic attraction between an electron and a hole
  • · Replies 4 ·
Replies
4
Views
5K
Graduate What Causes Flat Dispersion of Charge Excitations in Solids?
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad What is an electron hole pair?
  • · Replies 1 ·
Replies
1
Views
3K
Undergrad Issues in understanding screening effects in the Jellium model
  • · Replies 0 ·
Replies
0
Views
3K
Graduate Bipolar transport in a simple illuminated semiconductor bar
  • · Replies 7 ·
Replies
7
Views
2K
Graduate Photoelectron to electron hole pair doubts
  • · Replies 5 ·
Replies
5
Views
2K
Graduate Excitons. Is this the same as radiative recombination?
  • · Replies 1 ·
Replies
1
Views
2K