University of Dayton

Liangti Qu

Liming Dai

Morley O Stone

A nanocomposite dry adhesive. The nanocomposite dry adhesive includes a substrate; and an array of vertically aligned single-walled carbon nanotubes or vertically aligned multi-walled carbon nanotubes on the substrate, wherein the nanocomposite dry adhesive utilizes the array of single-walled carbon nanotubes or multi-walled carbon nanotubes as synthesized, the as synthesized single-walled carbon nanotubes being substantially free of randomly entangled nanotube segments on top of the vertically aligned single-walled carbon nanotubes, the as synthesized multi-walled carbon nanotubes having randomly entangled nanotube segments on top of the vertically aligned multi-walled carbon nanotubes; wherein the dry adhesive has a normal adhesion strength of at least about 5 N&#xb7;cm, and a shear adhesion strength of at least about 13 N&#xb7;cm. Methods of making a nanocomposite dry adhesive are also described.

Aligned carbon nanotubes for dry adhesives and methods for producing same

A method and system for the preferential growth of semiconducting vertically-aligned single-walled carbon nanotubes (VA-SWNTs) is provided. The method combines the use of plasma-enhanced chemical vapor deposition at low pressure with rapid heating. The method provides a high yield of up to approximately 96% semiconducting SWNTs in the VA-SWNT array. The as-synthesized semiconducting SWNTs can be used directly for fabricating field effect transistor (FET) devices without the need for any post-synthesis purification or separation.

Method for preferential growth of semiconducting vertically aligned single walled carbon nanotubes

An electroless deposition method of depositing metal nanoparticles onto conductive substrates such as carbon nanotubes is provided. The carbon nanotubes are provided on a support comprising a metal substrate and then immersed in an aqueous solution containing metal ions. The metal substrate metal has a redox potential which is lower than that of the metal ions in solution such that the metal ions are readily reduced into metal nanoparticles on the carbon nanotubes.

Growing community of inventors

Kettering, OH, United States of America

Liangti Qu