Doped nanocrystals as plasmonic probes of redox chemistry

Prashant K Jain; Karthish Manthiram; Jesse H Engel; Sarah L White; Jacob A Faucheaux; A Paul Alivisatos

doi:10.1002/anie.201303707

Doped nanocrystals as plasmonic probes of redox chemistry

Angew Chem Int Ed Engl. 2013 Dec 16;52(51):13671-5. doi: 10.1002/anie.201303707. Epub 2013 Oct 23.

Authors

Prashant K Jain¹, Karthish Manthiram, Jesse H Engel, Sarah L White, Jacob A Faucheaux, A Paul Alivisatos

Affiliation

¹ Department of Chemistry, University of Illinois at Urbana, Champaign, 600 S. Mathews Ave, Urbana, IL 61801 (USA) http://www.nanogold.org; Department of Physics and Materials Research Lab, University of Illinois at Urbana Champaign, Urbana, IL 61801 (USA). jain@illinois.edu.

PMID: 24155083
DOI: 10.1002/anie.201303707

Abstract

A (nano)crystal-clear view: With doped semiconductor nanocrystals, local chemical events can be probed through their perturbation of the carrier density of the nanocrystal. Examples demonstrate that redox processes and ligand chemistry can induce changes in the vacancy density within copper(I) sulfide nanorods, allowing such events to be detected by strong shifts in localized surface plasmon resonance.

Keywords: copper sulfide; doping; ion exchange; nanocrystals; semiconductor plasmons.