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 p...

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Veröffentlicht in:	Nano letters 2007-08, Vol.7 (8), p.2307-2311
Hauptverfasser:	Ma, Wenjun, Song, Li, Yang, Rong, Zhang, Taihua, Zhao, Yuanchun, Sun, Lianfeng, Ren, Yan, Liu, Dongfang, Liu, Lifeng, Shen, Jun, Zhang, Zhengxing, Xiang, Yanjuan, Zhou, Weiya, Xie, SiShen
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: electronic structure, electrical, magnetic, and optical properties Condensed matter: structure, mechanical and thermal properties Cross-disciplinary physics: materials science rheology Crystallization - methods Elasticity Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures Electronic transport in multilayers, nanoscale materials and structures Exact sciences and technology Hardness Macromolecular Substances - chemistry Materials science Materials Testing Mechanical and acoustical properties of condensed matter Mechanical properties of nanoscale materials Membranes, Artificial Methods of nanofabrication Molecular Conformation Nanoscale materials and structures: fabrication and characterization Nanotechnology - methods Nanotubes Nanotubes - chemistry Nanotubes - ultrastructure Particle Size Physics Surface Properties Tensile Strength
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Beschreibung
Zusammenfassung:	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.
ISSN:	1530-6984 1530-6992
DOI:	10.1021/nl070915c