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Updated: Jan 24, 2026

Synthesis of Ligand-free CdS Nanoparticles within a Sulfur Copolymer Matrix
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Inter-ligand energy transfer in dye chromophores attached to high bandgap SiO2 nanoparticles
Michael B Price1, Andrew Paton, Jeffrey Gorman
1School of Chemical and Physical Sciences, Victoria University of Wellington, Wellington 6140, New Zealand. nathaniel.davis@vuw.ac.nz.
Abstract:
Artificial light harvesters require ordered arrangement of chromophores. We covalently attach three organic chromophore ligands to silicon dioxide nanoparticles. This allows us to study inter-ligand energy transfer when attached to SiO2 nanoparticles, creating a simple system with a large ratio of donors to acceptors. Using steady-state and transient spectroscopy measurements we quantify this energy transfer between ligands. We show a maximum transfer efficiency of 30% and measure the 2D diffusion length of anthracene carboxylic acid on SiO2 to be between 0.6 and 2.2 nm.
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