pH-Dependent structure of water-exposed surfaces of CdSe quantum dots.

pH-Dependent structure of water-exposed surfaces of CdSe quantum dots.
Chem Commun (Camb). 2019 Apr 18;:
Authors: Westmoreland DE, Nap RJ, Arcudi F, Szleifer I, Weiss EA
Abstract
Increasing negative charge density at the surfaces of CdSe quantum dots (QDs) effects a bathochromic shift of their ground state optical spectra with increasing pH due to electrostatic and chemical modifications at the QD surface. These modifications are enabled by weakly-bound ligands that expose the surface to the aqueous environment.
PMID: 30997460 [PubMed - as supplied by publisher]

Source: Chemical Communications - April 17, 2019 Category: Chemistry Authors: Westmoreland DE, Nap RJ, Arcudi F, Szleifer I, Weiss EA Tags: Chem Commun (Camb) Source Type: research