Module 1 : Introduction to materials

Lecture 9 : Quantum dots

 

Thin Film Semiconductors

  • Electrons in conduction band (and holes in the valence band) are free to move in two dimensions.
  • Confined in one dimension by a potential well.
    • Potential well created due to a larger bandgap of the semiconductors on either side of the thin film.
    • Thinner films lead to higher energy levels.