J. Phys. Chem. C 2009, 113, 8169–8176
8169
Control of Surface State Emission via Phosphonic Acid Modulation in Ultrasmall CdSe Nanocrystals: The Role of Ligand Electronegativity Michael A. Schreuder,† James R. McBride,† Albert D. Dukes III,† Jessica A. Sammons,† and Sandra J. Rosenthal*,†,‡ Departments of Chemistry, Physics and Astronomy, Pharmacology, and Chemical and Biomolecular Engineering, Vanderbilt UniVersity, Station B 351824, NashVille, Tennessee 37235 ReceiVed: January 12, 2009; ReVised Manuscript ReceiVed: March 31, 2009
Pinned emission from ultrasmall (