Cui Jingbiao, Daghlian Charles P, Gibson Ursula J
Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire 03755-8000, USA.
J Phys Chem B. 2005 Jun 16;109(23):11456-60. doi: 10.1021/jp044762i.
We report on the formation of highly anisotropic nanotube composite materials, made by the attachment of gold nanoparticles to the surface of the single-walled carbon nanotubes, followed by preparation of an aligned composite film by compression in a Langmuir-Blodgett trough. The gold is attached in a one-step sonication procedure. The gold-modified nanotube material forms a stable suspension in toluene and has been characterized by atomic force and scanning force microscopy, energy-dispersive X-ray spectroscopy, and Raman spectroscopy. The aligned films have highly anisotropic electrical properties, with a factor of approximately 3000 difference in the conductivity between the aligned and perpendicular directions.
我们报道了高各向异性纳米管复合材料的形成过程，该材料通过将金纳米颗粒附着在单壁碳纳米管表面制成，随后在Langmuir-Blodgett槽中压缩制备取向复合膜。金通过一步超声处理附着。金修饰的纳米管材料在甲苯中形成稳定的悬浮液，并已通过原子力显微镜、扫描力显微镜、能量色散X射线光谱和拉曼光谱进行了表征。取向膜具有高度各向异性的电学性质，取向方向和垂直方向的电导率相差约3000倍。
