Comparison of extra electrons in colloidal n-type Al(3+)-doped and photochemically reduced ZnO nanocrystals

Alina M Schimpf; Stefan T Ochsenbein; Raffaella Buonsanti; Delia J Milliron; Daniel R Gamelin

doi:10.1039/c2cc34635d

Comparison of extra electrons in colloidal n-type Al(3+)-doped and photochemically reduced ZnO nanocrystals

Chem Commun (Camb). 2012 Sep 28;48(75):9352-4. doi: 10.1039/c2cc34635d. Epub 2012 Aug 13.

Authors

Alina M Schimpf¹, Stefan T Ochsenbein, Raffaella Buonsanti, Delia J Milliron, Daniel R Gamelin

Affiliation

¹ Department of Chemistry, University of Washington, Seattle, Washington 98195, USA.

PMID: 22890561
DOI: 10.1039/c2cc34635d

Abstract

The "extra" electrons in colloidal n-type ZnO nanocrystals formed by aliovalent doping and photochemical reduction are compared. Whereas the two are similar spectroscopically, they show very different electron-transfer reactivities, attributable to their different charge-compensating cations (Al(3+)vs. H(+)).