Enhanced organic electro-optic poling through nanoparticle doping
AssigneeBoard of Regents, The University of Texas System
InventorsBenjamin R. Lund, Samsuddin Faisal Mahmood, Naixin Yang
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Abstract
A method of poling an organic polymeric electro-optic material. The method includes doping the organic polymeric electro-optic material with nanoparticles. The method also includes heating the organic polymeric electro-optic material to a poling temperature. The method also includes poling the organic polymeric electro-optic material by applying an electric field across the organic polymeric electro-optic material.
Claims14
A method of poling an organic polymeric electro-optic material, the method comprising:
- doping the organic polymeric electro-optic material with nanoparticles, wherein doping further comprises;
- blending the organic polymeric electro-optic material and the nanoparticles using a mixed solvent system with cyclopentanone and toluene in a 2:1 ratio;
- sonicating carbon fullerene (C60) nanoparticles;
- dissolving in the carbon fullerene nanoparticles in toluene to form a mixture;
- adding cyclopentanone, poly(methyl methacrylate), and (N-Ethyl-N-(2-hydroxyethyl)-4-(4-nitrophenylazo)aniline) to the mixture to form a second mixture;
- spin casting the second mixture onto a substrate, the substrate at least partially coated with a transparent or semitransparent conducting electrode film, wherein spin casting forms a slide;
- annealing the slide at about eighty degrees Celsius for twelve hours with a nitrogen gas purging rate less than about 0.5 cubic feet per hour;
- and
- thereafter depositing gold by thermal vapor deposition onto the slide.
- heating the organic polymeric electro-optic material to a poling temperature;
- and
- poling the organic polymeric electro-optic material by applying an electric field across the organic polymeric electro-optic material.
7-8. (canceled)
A method of poling an organic polymeric electro-optic material, the method comprising:
- doping the organic polymeric electro-optic material with nanoparticles wherein doping the organic polymeric electro-optic material with nanoparticles forms a doped material, and wherein the poling temperature is achieved by placing the doped material on a hot plate at about thirty degrees Celsius and then ramping up the temperature to the poling temperature;
- heating the organic polymeric electro-optic material to a poling temperature;
- and
- poling the organic polymeric electro-optic material by applying an electric field across the organic polymeric electro-optic material;
- and wherein:
- doping comprises about 0.2 percent weight of carbon fullerene (C60) nanoparticles in a diameter range of about 0.5 nm to about 100 nm to form a doped material;
- the organic polymeric electro-optic material comprises poly(methyl methacrylate)/(N-Ethyl-N-(2-hydroxyethyl)-4-(4-nitrophenylazo)aniline) (PMMA/DR1);
- doping comprises blending the organic polymeric electro-optic material and the nanoparticles using a mixed solvent system with cyclopentanone and toluene in a 2:1 ratio;
- the electric field comprises about ninety volts per micrometer;
- and
- the poling temperature is achieved by heating the doped material to about thirty degrees Celsius and then ramping up to the poling temperature of about eighty degrees Celsius at a rate of about ten degrees Celsius per minute.
(canceled)
15-20. (canceled)
Dependencies are inferred from the claim text.