Ultrafast photoluminescence dynamics of blue-emitting silicon nanostructures

Abstract

We report on ultrafast photoluminescence spectroscopy of blue and red-emitting silicon nanostructures. Our results indicate that a dominant part of the blue and red emission comes from two distinct species with different energy states structures.

Keywords

• Silicon
• nanocrystals
• time-resolved spectroscopy
• luminescence
• polarization
• two-photon absorption