Behaviour of Ru(bpy)_²⁺3 on the Surface of Water-Soluble Single-Walled Carbon Nanotubes on Adding Other Cations

Hiroshi Shioyama

National Institute of Advanced Industrial Science and Technology (AIST), Osaka, Japan..

DOI: 10.4236/jsemat.2012.22015                

Abstract

Behaviour of excited Ru(bpy)²⁺₃ bound to the surface of water-soluble single-walled carbon nanotubes on addition of other cations have been investigated by measuring Ru(bpy) luminescence. In contrast to what was observed with a solution containing rod-like aggregation particles of Nafion, we found that Ru(bpy)²⁺₃ has a stronger attraction than that of other cations to the sulfonic groups on the carbon nanotubes. Such a difference is attributed to the unique micro-environmental characteristics of the molecular assemblies.

Keywords

Nanostructures; Single-Walled Carbon Nanotube; Ru(bpy)²⁺₃ ; Luminescence Quenching

Conflicts of Interest

The authors declare no conflicts of interest.

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