pH-Dependent structure of water-exposed surfaces of CdSe quantum dots†
Dana E.
Westmoreland, 
a
Rikkert J.
Nap,
b
Francesca
Arcudi,
a
Igal
Szleifer
ab
and
Emily A.
Weiss
*a
a
Rikkert J.
Nap,
b
Francesca
Arcudi,
a
Igal
Szleifer
ab
and
Emily A.
Weiss
*a
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.
- This article is part of the themed collection: Frontiers in Proton Coupled Electron Transfer (PCET)
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