Engineering Mn 2+ -Doped CdS/ZnS Quantum Dot Surfaces to Control Auger Upconversion Photocatalysis

Journal of the American Chemical Society 2026

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Authors: Bereket Zekarias, Luis Pablo Arriaga Gonzalez, Olivia A De Luca, Andrew Kelly, Kevin Qian, Eric A Riesel, Connor Orrison, Dong Hee Son, Evripidis Michail, Matthew Y. Sfeir, Rachel N Austin, Jonathan S. Owen
+1 more Makeda A Tekle-Smith
DOI: 10.1021/jacs.5c21777
Cited by: 3
References: 45

Abstract

-doped CdS/ZnS quantum dots, in which surface stearate ligands are replaced with ligands that form ion pairs, are stable photocatalysts capable of reducing a variety of aryl chloride substrates, defluorinating fluorinated aromatic compounds, and facilitating the formation of new C-C bonds. Enhanced activity of the electrostatically stabilized quantum dot dispersions in polar solutions is observed at very low catalyst loadings (0.0005 mol %). The full scope of the reactions studied points to the importance of engineering quantum dot surface chemistry to control the reactivity afforded by hot electrons generated by multiphoton absorption and Auger upconversion.

Fields of Study & Subjects

Quantum Dots Synthesis And Properties Luminescence and Fluorescent Materials Nonlinear Optical Materials Studies

Publication details

Journal / source
Journal of the American Chemical Society
Publisher
American Chemical Society (ACS)
Volume
148
Issue
7
Pages
6798–6804
Publication date
9 February 2026
Language
EN