Carbon nanotubes with fluorescent surfactant
AssigneeInternational Business Machines Corporation
InventorsDylan J. Boday, Joseph Kuczynski, Jason T. Wertz, Jing Zhang
Life of this patent
Estimating the term…
Abstract
A fluorescent material may include a medium, carbon nanotubes dispersed in the medium, and a fluorescent surfactant. The fluorescent surfactant may be adsorbed to a surface of some of the carbon nanotubes in a concentration sufficient to make the material fluoresce in the presence of radiation. The material may be applied to a material and tested for fluorescence, electrical conductivity, or carbon nanotube structure.
Claims19
A fluorescent material, comprising:
- a medium;
- carbon nanotubes dispersed in the medium;
- and
- a first fluorescent surfactant, wherein the first fluorescent surfactant is adsorbed to a surface of a first quantity of the carbon nanotubes in a concentration sufficient to make the material fluoresce in the presence of radiation.
A method for producing a fluorescent material, comprising:
- providing a medium;
- dispersing carbon nanotubes in the medium;
- and
- adsorbing a first fluorescent surfactant to a first quantity of the carbon nanotubes in a concentration sufficient to make the material fluoresce in the presence of radiation.
A method for verifying authenticity of a product having a material, comprising:
- exposing the material to incident radiation, the material including a medium, carbon nanotubes dispersed in the medium, and a first fluorescent surfactant adsorbed to a first quantity of the carbon nanotubes in a concentration sufficient to make the material fluoresce at a first emission wavelength in the presence of radiation;
- and
- detecting emissive radiation having a first emission wavelength to verify the authenticity of the product.
Dependencies are inferred from the claim text.