Issue 60, 2019

Inter-ligand energy transfer in dye chromophores attached to high bandgap SiO2 nanoparticles

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.

Graphical abstract: Inter-ligand energy transfer in dye chromophores attached to high bandgap SiO2 nanoparticles

Supplementary files

Article information

Article type
Communication
Submitted
03 Мам. 2019
Accepted
09 Мам. 2019
First published
09 Мам. 2019

Chem. Commun., 2019,55, 8804-8807

Inter-ligand energy transfer in dye chromophores attached to high bandgap SiO2 nanoparticles

M. B. Price, A. Paton, J. Gorman, I. Wagner, G. Laufersky, K. Chen, R. H. Friend, T. W. Schmidt, J. M. Hodgkiss and N. J. L. K. Davis, Chem. Commun., 2019, 55, 8804 DOI: 10.1039/C9CC03412A

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