Wisconsin Alumni Research Foundation

Other

Yongho Joo

Padma Gopalan

Michael Scott Arnold

Gerald Joseph Brady

Harold T Evensen

Matthew John Shea

High density films of semiconducting single-walled carbon nanotubes having a high degree of nanotube alignment are provided. Also provided are methods of making the films and field effect transistors (FETs) that incorporate the films as conducting channel materials. The single-walled carbon nanotubes are deposited from a thin layer of organic solvent containing solubilized single-walled carbon nanotubes that is spread over the surface of an aqueous medium, inducing evaporative self-assembly upon contacting a solid substrate.

Floating evaporative assembly of aligned carbon nanotubes

Aligned carbon nanotubes for use in high performance field effect transistors

High density films of semiconducting single-walled carbon nanotubes having a high degree of nanotube alignment are provided. Also provided are methods of making the films and field effect transistors (FETs) that incorporate the films as conducting channel materials. The single-walled carbon nanotubes are deposited from a thin layer of organic solvent containing solubilized single-walled carbon nanotubes that is continuously supplied to the surface of an aqueous medium, inducing evaporative self-assembly upon contacting a solid substrate.

Continuous, floating evaporative assembly of aligned carbon nanotubes

Dose-controlled, floating evaporative assembly of aligned carbon nanotubes for use in high performance field effect transistors

Methods for removing polymer coatings from the surfaces of single-walled carbon nanotubes are provided. The methods remove polymer coatings that are used to selectively wrap and sort semiconducting single-walled carbon nanotubes from metallic single-walled carbon nanotubes. The methods are based on a process of detaching a polymer coatings by binding transition metal complexes to bi-pyridine repeat units within the polymer backbone.

Methods for removing polymer coatings from single-walled carbon nanotubes

Growing community of inventors

Madison, WI, United States of America

Yongho Joo