Discovery of Burstein-Moss shift in Re-doped MoS_2 nanoparticles

Qi Sun; Lena Yadgarov; Rita Rosentsveig; Gotthard Seifert; Reshef Tenne; J.L. Musfeldt

Discovery of Burstein-Moss shift in Re-doped MoS$_2$ nanoparticles

ORAL

Abstract

We investigated the optical properties of Re-doped MoS$_2$ nanoparticles and compared our findings with the pristine and bulk analogs. Our measurements reveal that confinement softens the exciton positions and reduces spin-orbit coupling whereas doping has the opposite effect. We model the doping-induced exciton blue shift in terms of the Burstein-Moss effect. These findings are important for understanding doping and finite length scale effects in model nanoscale materials.

^*This work is supported by the MSD, BES, and U.S. DOE.

March 19, 2013, 2:03 PM – March 19, 2013, 2:15 PM

Authors

Qi Sun
- Department of Chemistry, University of Tennessee
Lena Yadgarov
- Department of Materials and Interfaces, Weizmann Institute of Science
Rita Rosentsveig
- Department of Materials and Interfaces, Weizmann Institute of Science
Gotthard Seifert
- Physikalische Chemie, Technische Universitat
Reshef Tenne
- Department of Materials and Interfaces, Weizmann Institute of Science
J.L. Musfeldt
- Department of Chemistry, University of Tennessee
- University of Tennessee