Microwave conductance of aligned multiwall carbon nanotube textile sheets

作者：Brown Brian L^*; Bykova Julia S; Howard Austin R; Zakhidov Anvar A; Shaner Eric A; Lee Mark

来源：Applied Physics Letters, 2014, 105(26): 263105.

DOI：10.1063/1.4905220

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 %26quot;universal disorder%26quot; AC conduction reported in many types of single-wall nanotube materials.

• 出版日期2014-12-29