Kr and 4He Adsorption on Individual Suspended Single-Walled Carbon Nanotubes

• DOI: 10.1007/s10909-012-0642-3
• Publication Date: 2012-06-08T14:06:57Z
• Authors: Hao-Chun Lee; Oscar E. Vilches; Zenghui Wang; Erik Fredrickson; Peter Morse; Richard Roy; Boris Dzyubenko; David H. Cobden
• Keywords: Chirality

We report mass and conductance adsorption isotherms of Kr on individual, single-walled, suspended carbon nanotubes for 53 K<T<90 K for several devices, and of 4He for 5 K<T<8 K for two devices. Different nanotubes, probably of different diameter and/or chirality, yield different phase diagrams, full monolayer coverages, and partial wetting characteristics for Kr. The 4He results show, for one of the devices, a greatly reduced heat of adsorption as compared to the well studied system of 4He on graphite.