Enhanced Raman and luminescence spectra from co-encapsulated silicon quantum dots and Au-Ag nanoalloys

Noor Aniza Harun; Benjamin R Horrocks; David A Fulton

doi:10.1039/c4cc06438k

Enhanced Raman and luminescence spectra from co-encapsulated silicon quantum dots and Au-Ag nanoalloys

Chem Commun (Camb). 2014 Oct 21;50(82):12389-91. doi: 10.1039/c4cc06438k.

Authors

Noor Aniza Harun¹, Benjamin R Horrocks, David A Fulton

Affiliation

¹ Chemical Nanoscience Laboratory, School of Chemistry, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK. b.r.horrocks@ncl.ac.uk d.a.fulton@ncl.ac.uk.

PMID: 25188727
DOI: 10.1039/c4cc06438k

Abstract

We report an approach to enhance simultaneously luminescence and SERS signals with a single excitation wavelength by co-encapsulating silicon quantum dots and Au-Ag alloy nanoparticles encoded with Raman reporter molecules inside polymeric nanoparticles. The SERS-luminescence enhancement exploits the large Stokes shift of silicon quantum dots, which allows 'room' for the display of a Raman spectrum.