Microwave conductance of aligned multiwall carbon nanotube textile sheets
Abstract
Multiwall carbon nanotube (MWNT) sheets are a class of nanomaterial-based multifunctional textile with potentially useful microwave properties. To understand better the microwave electrodynamics, complex AC conductance measurements from 0.01 to 50 GHz were made on sheets of highly aligned MWNTs with the alignment texture both parallel and perpendicular to the microwave electric field polarization. In both orientations, the AC conductance is modeled to first order by a parallel frequency-independent conductance and capacitance with no inductive contribution. This is consistent with low-frequency diffusive Drude AC conduction up to 50 GHz, in contrast to the “universal disorder” AC conduction reported in many types of single-wall nanotube materials.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Dec 29, 2014
- Source ID
- 10.1063/1.4905220
Entities
People
- Anvar A. Zakhidov
- Austin R. Howard
- Brian L. Brown
- Eric A. Shaner
- Julia S. Bykova
- Mark Lee
Organizations
- Air Force Office of Scientific Research
- Sandia National Laboratories
- United States Department of Energy
- University of Texas at Dallas