Directly synthesized strong, highly conducting, transparent single-walled carbon nanotube films.
We report the direct synthesis of strong, highly conducting, and transparent single-walled carbon nanotube (SWNT) films. Systematically, tests reveal that the directly synthesized films have superior electrical and mechanical properties compared with the films made from a solution-based filtration process: the electrical conductivity is over 2000 S/cm and the strength can reach 360 MPa. These values are both enhanced by more than 1 order. We attribute these intriguing properties to the good and long interbundle connections. Moreover, by the help of an extrapolated Weibull theory, we verify the feasibility of reducing the interbundle slip by utilizing the long-range intertube friction and estimate the ultimate strength of macroscale SWNTs without binding agent.
Ma
Wenjun
W
Beijing National Laboratory of Condensed Matter, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, PR China.
Song
Li
L
Yang
Rong
R
Zhang
Taihua
T
Zhao
Yuanchun
Y
Sun
Lianfeng
L
Ren
Yan
Y
Liu
Dongfang
D
Liu
Lifeng
L
Shen
Jun
J
Zhang
Zhengxing
Z
Xiang
Yanjuan
Y
Zhou
Weiya
W
Xie
Sishen
S
D003460:Crystallization / Q000379:methods*; D004548:Elasticity; D006244:Hardness; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D008567:Membranes, Artificial; D008968:Molecular Conformation; D036103:Nanotechnology / Q000379:methods*; D043942:Nanotubes / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size; D013499:Surface Properties; D013718:Tensile Strength
D046911:Macromolecular Substances; D008567:Membranes, Artificial