In-situ fabrication of highly-fluorescent nanohybrids based on Carbon Nanotubes and Gold Nanoparticles

Abstract

Highly-fluorescent, water-soluble and ambient-stable nanohybrids based on multi-walled carbon nanotubes and gold nanoparticles (Au@MWNTs) with high-density and well-distributed Au nanoparticles were obtained assisted by organic optoelectronic active molecules as an interlinker and stabilizer via a facile in-situ fabrication method in aqueous solution, and were confirmed by TEM, SEM, EDX, UV-Vis measurements. The Au nanoparticle diameters of the hybrids can be controlled and decreased to a limited small range with high stability via this in-situ fabrication approach. The optical properties of the hybrids were studied, and it was found that the hybrid exhibited strong visible luminescence under the UV lamp irradiation, which might extend its potential application on light emitting sources, biological labeling etc.