Patent ID: 11942281
Assignee: NORTHWESTERN UNIVERSITY
Field: Materials, metallurgy (Chemistry)
Classification: CPC H  B  C  Y | IPC B  C  H

Claim 0:
1. A single walled carbon nanotube titania (SWCNT-TiO2) nanocomposite thin film made by a method comprising:
dispersing single walled carbon nanotubes (SWCNTs) in an ethyl-cellulose (EC)-ethanol solution to form a SWCNT solution;
sonicating the SWCNT solution for a first period of time;
disposing the sonicated SWCNT solution in terpineol to perform solvent exchange and to obtain the concentrated SWCNT ink;
forming a titania (TiO2) solution;
blade-coating a mechanical mixture of the concentrated SWCNT ink and the titania solution onto a substrate; and
annealing the blade-coated substrate at a predetermined temperature for a second period of time to obtain the annealed SWCNT-TiO2 nanocomposite thin films, wherein the annealed SWCNT-TiO2 nanocomposite thin film has an intensity ratio, I(D)/I(G), of about 0.5, indicating that the annealed SWCNT-TiO2 nanocomposite thin film has a low carbon defect density, wherein I(D) and I(G) are respectively intensities of a D-band at about 1350 cm−1 to a G-band at about 1590 cm−1 of a Raman spectrum.