Barreiro Amelia, Rurali Riccardo, Hernández Eduardo R, Moser Joel, Pichler Thomas, Forró László, Bachtold Adrian
Centre d'Investigacions en Nanociencia i Nanotecnologia, Campus de la Universitat Autònoma de Barcelona (UAB), E-08193 Bellaterra, Spain.
Science. 2008 May 9;320(5877):775-8. doi: 10.1126/science.1155559. Epub 2008 Apr 10.
An important issue in nanoelectromechanical systems is developing small electrically driven motors. We report on an artificial nanofabricated motor in which one short carbon nanotube moves relative to another coaxial nanotube. A cargo is attached to an ablated outer wall of a multiwalled carbon nanotube that can rotate and/or translate along the inner nanotube. The motion is actuated by imposing a thermal gradient along the nanotube, which allows for subnanometer displacements, as opposed to an electromigration or random walk effect.
纳米机电系统中的一个重要问题是开发小型电动马达。我们报道了一种人工纳米制造的马达，其中一根短碳纳米管相对于另一根同轴纳米管移动。一个货物附着在多壁碳纳米管的烧蚀外壁上，该外壁可以沿着内纳米管旋转和/或平移。这种运动是通过沿纳米管施加热梯度来驱动的，这允许实现亚纳米级的位移，这与电迁移或随机游走效应不同。
