Format

Send to

Choose Destination
Phys Rev Lett. 2005 Jun 10;94(22):226401. Epub 2005 Jun 6.

Long-distance diffusion of excitons in double quantum well structures.

Author information

1
Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, PA 15260, USA.

Abstract

In this Letter we report on lateral diffusion measurements of excitons at low temperature in double quantum wells of various widths. The structure is designed so that excitons live up to 30 micros and diffuse up to 500 microm. Particular attention is given to establishing that the transport occurs by exciton motion. The deduced exciton diffusion coefficients have a very strong well width dependence, and obey the same power law as the diffusion coefficient for electrons.

Supplemental Content

Full text links

Icon for American Physical Society
Loading ...
Support Center