High Performance Carbon Nanotube – Polymer Nanofiber Hybrid Fabrics

Stable nanoscale hybrid fabrics containing both polymer nanofibers and separate and distinct carbon nanotubes (CNTs) are highly desirable but very challenging to produce. Here, we report the first instance of such a hybrid fabric, which can be easily tailored to…

Ultralight Anisotropic Foams From Layered Aligned Carbon Nanotube Sheets

In this work, we present large scale, ultralight aligned carbon nanotube (CNT) structures which have densities an order of magnitude lower than CNT arrays, have tunable properties and exhibit resiliency after compression. By stacking aligned sheets of carbon nanotubes and…

Carbon Nanotube Sheet Piezoresistive Strain Sensors

Carbon nanotubes (CNTs) have a unique set of properties that may be useful in the production of next generation structural health monitoring composites. This research introduces a novel CNT based material system for strain and damage sensing applications. An aligned…

Structural Annealing of Carbon Coated Aligned Multi-Walled Carbon Nanotube Sheets

Sheets of aligned multi-walled carbon nanotubes (AMWCNTs) were used to study the structural annealing of pyrolytic carbon (PyC) coatings with various thicknesses on MWCNTs. PyC was deposited using chemical vapor infiltration and the thickness was controlled via the…

Conformal Atomic Layer Deposition of Alumina on Millimeter Tall, Vertically-aligned Carbon Nanotube Arrays

Atomic layer deposition (ALD) can be used to coat high aspect ratio and high surface area substrates with conformal and precisely controlled thin films. Vertically aligned arrays of multi-walled carbon nanotubes (MWCNTs) with lengths up to 1.5 mm…

Aligned Carbon Nanotube Sheet High Efficiency Particulate Air Filters

Aerosol filters, made with conventional micro-fiber fabrics, are designed to efficiently capture small particles from the air. Filters constructed of nano-fiber fabric structures provide even greater filtration efficiency than conventional micro-fiber fabrics due to their higher surface area…

Dr. Bradford named Outstanding Teacher

Dr. Philip Bradford was selected as the Outstanding Teacher from the College of Textiles for the  2013-2014 academic year.

US Senator Kay Hagan Visits Bradford Research Group

United States Senator, Kay Hagan, visited the Bradford Research Group lab during her recent visit to the NC State College of Textiles.

Copper Encapsulated Vertically Aligned Carbon Nanotube Arrays

A new procedure is described for the fabrication of vertically aligned carbon nanotubes (VACNTs) which are decorated, and even completely encapsulated by a dense network of copper nanoparticles. The process involves the conformal deposition of pyrolytic carbon (Py-C),…

Kun Fu’s Paper Wins NCSU AIF Best Paper Award

Kun Fu’s paper titled “Aligned Carbon Nanotube-Silicon Sheets: A Novel Nano-architecture for Flexible Lithium Ion Battery Electrodes”, recently published in the journal, Advanced Materials, won the NCSU Analytical Instrumentation Facility (AIF) Best Paper Award for  2013. The NCSU AIF…

Aligned Carbon Nanotube-Silicon Sheets: A Novel Nano-architecture for Flexible Lithium Ion Battery Electrodes

In the pursuit of high performance lithium ion batteries (LIBs), significant effort has been expended to explore high performance cathode and anode materials. Silicon has the greatest lithium storage capacity per unit mass, and is therefore one of…