Tuesday, March 16, 2010

Ligand-Functionalised Copper(II) Hydroxide for Quantum Dot Photoluminescence Quenching

Ligand-Functionalised Copper(II) Hydroxide for Quantum Dot Photoluminescence Quenching: "Publication year: 2010
Source: Journal of Colloid and Interface Science, In Press, Accepted Manuscript, Available online 12 March 2010
Benjamin J., Wylie-van Eerd , Aidan G., Young , Najeh I., Al-Salim , Tim, Kemmitt , Nick M., Strickland
The preparation of ligand-functionalised copper(II) hydroxide (Cu(OH)2) particles and their conjugation with hydrophobic CdSeS quantum dots (QDs) is reported. The photoluminescence of the QDs is efficiently quenched upon their conjugation with the functionalised Cu(OH)2 particles. Cu(OH)2 was functionalised with 2,2’-dipyridyl (2,2-bipy) and n-octanoic acid (OcA), by adsorption of the desired ligand to Cu(OH)2 suspended in solvent. The resulting functionalised Cu(OH)2 substrates were characterised using infrared, UV-visible diffuse reflectance, and X-ray photoelectron spectroscopic techniques, TEM imaging, and micro- and thermogravimetric analysis. The spectral data indicated that both 2,2-bipy and OcA coordinated to Cu(OH)2 in a bidentate manner. The functionalised Cu(OH)2 substrates...

Graphical abstract

The preparation of Cu(OH)2 functionalised with 2,2-bipy or n-octanoic acid, and the subsequent conjugation with hydrophobic CdSeS quantum dots is reported.
image"

1 comment:

  1. Generally speaking, nanoparticles are particles between 1 and 100 nanometres (nm) in diameters with a surrounding interfacial layer contains 20-15000 atoms and are present in a scope between the quantum and newtonian scales. Silver Nanoparticles Conjugation

    ReplyDelete