Gas flow over solid surfaces generates electric current

摘要

In 2003, Ghosh et al, had reported the development of voltage/current in a bundle of single-walled carbon nanotubes (SWCNT), when the bundle is in contact with a flowing liquid. This effect had been predicted earlier by Karl and Shapiro in a theoretical paper investigating behaviour of nanotubes in a flowing liquid. They had shown that 'electric current can be generated in metallic carbon nanotubes immersed in liquids flowing along them Molecular layers of the liquid coat the nanotube, slip along its surface, and excite there a phonon wind, which drags free carriers in the tube'.