Title

• Colloidal Semiconductor Nanocrystals: Historical Perspective and Recent Developments

Abstract

• Semiconductor nanocrystals prepared by colloidal chemistry have been studied for more than three decades but it is only now that they are employed in mass-market commercial applications. Nowadays, these nano-objects can be fabricated with an excellent control of their composition, size and shape in such manner that their electronic structure and their optical properties can be accurately tuned. This historical perspective on the development of colloidal nanocrystals will be reviewed in the first part of the talk. In particular, the reasons why semiconductor nanocrystals can be sometimes considered as artificial atoms will be discussed. The second part of the presentation will be focused on recent advances in the field that potentially open totally new perspectives of application. We will show that the artificial atoms can be self-assembled to form new types of two-dimensional crystals characterized by original electronic band structures.

References

• https://physique.iemn.fr/en/electronic-structure/members/christophe-delerue

Contact

• christophe.delerue@iemn.fr