Dopants and Charge Carriers in Colloidal Quantum Dots

Dopants and Charge Carriers in Colloidal Quantum Dots

Daniel Gamelin
Washington University

The deliberate introduction of impurities and charge carriers into semiconductors can completely transform their physical properties in ways that are essential to their performance in information processing devices, solar cells, injection lasers, and numerous other semiconductor technologies.

This talk will focus on our group's exploration into new ways for manipulating the physical properties of the smallest of semiconductor crystallites, semiconductor nanocrystals (quantum dots), via introduction of additional charge carriers or transition-metal impurity ions.

Specific focus will be given to our recent studies of the preparation, physical properties, and reactivities of colloidal n-type ZnO quantum dots.