PH-Dependent structure of water-exposed surfaces of CdSe quantum dots

Dana E. Westmoreland, Rikkert J. Nap, Francesca Arcudi, Igal Szleifer, Emily A Weiss

Research output: Contribution to journalArticle

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.

Original languageEnglish
Pages (from-to)5435-5438
Number of pages4
JournalChemical Communications
Volume55
Issue number38
DOIs
Publication statusPublished - Jan 1 2019

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Semiconductor quantum dots
Water
Chemical modification
Charge density
Ground state
Electrostatics
Ligands

ASJC Scopus subject areas

  • Catalysis
  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

Cite this

PH-Dependent structure of water-exposed surfaces of CdSe quantum dots. / Westmoreland, Dana E.; Nap, Rikkert J.; Arcudi, Francesca; Szleifer, Igal; Weiss, Emily A.

In: Chemical Communications, Vol. 55, No. 38, 01.01.2019, p. 5435-5438.

Research output: Contribution to journalArticle

Westmoreland, DE, Nap, RJ, Arcudi, F, Szleifer, I & Weiss, EA 2019, 'PH-Dependent structure of water-exposed surfaces of CdSe quantum dots', Chemical Communications, vol. 55, no. 38, pp. 5435-5438. https://doi.org/10.1039/c9cc01339c
Westmoreland, Dana E. ; Nap, Rikkert J. ; Arcudi, Francesca ; Szleifer, Igal ; Weiss, Emily A. / PH-Dependent structure of water-exposed surfaces of CdSe quantum dots. In: Chemical Communications. 2019 ; Vol. 55, No. 38. pp. 5435-5438.
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