초록 ▼

Certain spin-coatable liquids and application techniques are described, which can be used to form nanotube films or fabrics of controlled properties. A spin-coatable liquid for formation of a nanotube film includes a liquid medium containing a controlled concentration of purified nanotubes, wherein

Certain spin-coatable liquids and application techniques are described, which can be used to form nanotube films or fabrics of controlled properties. A spin-coatable liquid for formation of a nanotube film includes a liquid medium containing a controlled concentration of purified nanotubes, wherein the controlled concentration is sufficient to form a nanotube fabric or film of preselected density and uniformity, and wherein the spin-coatable liquid comprises less than 1×1018 atoms/cm3 of metal impurities. The spin-coatable liquid is substantially free of particle impurities having a diameter of greater than about 500 nm.

대표청구항 ▼

1. An applicator liquid comprising: a liquid medium containing a distribution of purified nanotubes wherein the liquid medium is selected from the group consisting of ethyl lactate, dimethyl sulfoxide (DMSO), monomethyl ether, 4-methyl-2 pentanone, N-ethylpyrrolidone (NMP), t-butyl alcohol, methoxy

1. An applicator liquid comprising: a liquid medium containing a distribution of purified nanotubes wherein the liquid medium is selected from the group consisting of ethyl lactate, dimethyl sulfoxide (DMSO), monomethyl ether, 4-methyl-2 pentanone, N-ethylpyrrolidone (NMP), t-butyl alcohol, methoxy propanol, propylene glycol, ethylene glycol, gamma butyrolactone, benzyl benzoate, salicyladehyde, tetramethyl ammonium hydroxide and esters of alpha-hydroxy carboxylic acids,wherein the purified nanotubes remain separate from one another without precipitation or flocculation for a time sufficient to apply the applicator liquid to a surface,wherein the purified nanotubes are free of functionalization that deplete π electrons so that desired electrical properties of the nanotubes are maintained,wherein the applicator liquid comprises less than about 1×1018 atoms/cm3 of metallic impurities,wherein the applicator liquid is free of surfactants and polymers, andwherein the applicator liquid is free of particle impurities having a diameter of greater than about 500 nm wherein the purified nanotubes are homogenously distributed in the liquid medium. 2. The applicator liquid of claim 1, wherein the applicator liquid is free of particle impurities having a diameter of greater than about 300 nm. 3. The applicator liquid of claim 1, wherein the applicator liquid is free of particle impurities having a diameter of greater than about 100 nm. 4. The applicator liquid of claim 1, wherein the applicator liquid is free of particle impurities having a diameter of greater than about 45 nm. 5. The applicator liquid of claim 1, wherein the applicator liquid comprises less than about 15×1010 atoms/cm3 of metallic impurities. 6. The applicator liquid of claim 1, wherein the applicator liquid comprises less than about 1×1018 atoms/cm3 of transition metal impurities. 7. The applicator liquid of claim 1, wherein the applicator liquid comprises less than about 15×1010 atoms/cm3 of transition metal impurities. 8. The applicator liquid of claim 1, wherein the applicator liquid comprises less than about 1×1018 atoms/cm3 of heavy metal impurities. 9. The applicator liquid of claim 1, wherein the applicator liquid comprises less than about 15×1010 atoms/cm3 of heavy metal impurities. 10. The applicator liquid of claim 1, wherein the applicator liquid comprises less than about 10×1017 atoms/cm3 of group I and group II element impurities. 11. The applicator liquid of claim 1, wherein the applicator liquid comprises less than about 15×1010 atoms/cm3 of group I and group II element impurities. 12. The applicator liquid of claim 1, wherein the liquid medium is a non-halogen solvent. 13. The applicator liquid of claim 1, wherein the liquid medium is a non-aqueous solvent. 14. The applicator liquid of claim 1, wherein the liquid medium is selected for compatibility with an electronics manufacturing process. 15. The applicator liquid of claim 1, wherein the liquid medium is ethyl lactate. 16. The applicator liquid of claim 1, wherein the purified nanotubes comprise conductive nanotubes. 17. The applicator liquid of claim 1, wherein the purified nanotubes are single-walled nanotubes.