Monodisperse single-walled carbon nanotube populations and related methods for providing same
The present teachings provide methods for providing populations of single-walled carbon nanotubes that are substantially monodisperse in terms of diameter, electronic type, and/or chirality. Also provided are single-walled carbon nanotube populations provided thereby and articles of manufacture including such populations.
1. A population of loose single-walled carbon nanotubes, wherein greater than about 93% of the population is semiconducting single-walled carbon nanotubes and the single-walled carbon nanotubes are unmodified chemically or structurally.
2. The population of single-walled carbon nanotubes of claim 1 , wherein greater than about 97% of the population is semiconducting single-walled carbon nanotubes.
3. The population of single-walled carbon nanotubes of claim 1 , wherein greater than about 99% of the population is semiconducting single-walled carbon nanotubes.
4. The population of claim 1 dispersed in a liquid medium comprising two surface active components of different types.
5. The population of claim 1 wherein the single-walled carbon nanotubes have a diameter greater than 11 Å.
6. The population of claim 2 wherein the single-walled carbon nanotubes have a diameter greater than 11 Å.
7. The population of claim 3 wherein the single-walled carbon nanotubes have a diameter greater than 11 Å.
8. The population of single-walled carbon nanotubes of claim 1 , wherein the single-walled carbon nanotubes are synthesized by a bulk synthesis process comprising a laser ablation process, a high pressure carbon monoxide decomposition process, or a Co—Mo catalysis process.
9. An article of manufacture comprising the population of single-walled carbon nanotubes of claim 1 .
10. A thin film transistor comprising the population of single-walled carbon nanotubes of claim 1 .
11. A population of loose single-walled carbon nanotubes, wherein greater than about 93% of the population is semiconducting single-walled carbon nanotubes, the single-walled carbon nanotubes have a diameter greater than 11 Å, the loose single-walled carbon nanotubes are not grown on and adhered to a substrate, and the single-walled carbon nanotubes are unmodified chemically or structurally.
12. The population of claim 11 , wherein greater than about 97% of the population is semi-conducting single-walled carbon nanotubes.