title: Probing the continuous radio frequency spectrum of water relaxation using a carbon nanotube.
abstract: We have obtained the continuous radio frequency spectrum of water molecule relaxation using carbon nanotubes (CNT) as a high-speed nanoprobe. Three sets of characteristic time scales are clearly identified. Two sets are attributed to the electric-field-driven polarization of water molecules bound to CNTs and the collective relaxation of water layers in the vicinity of CNTs, respectively. The third set is appreciable only in air, and can be related to triplet oxygen relaxation.
authors.affiliation: Research Center for Time-domain Nano-functional Devices and School of Electrical Engineering, Korea University, 5-1 Anam, Sungbuk, Seoul 136-701, Korea.
authors.forename: H T
authors.initials: HT
authors.lastname: Kim
authors.forename: D W
authors.initials: DW
authors.lastname: Kim
authors.forename: J S
authors.initials: JS
authors.lastname: Hwang
authors.forename: J S
authors.initials: JS
authors.lastname: Shin
authors.forename: D
authors.initials: D
authors.lastname: Whang
authors.forename: D
authors.initials: D
authors.lastname: Ahn
authors.forename: S W
authors.initials: SW
authors.lastname: Hwang
mesh_terms: D008422:Materials Testing; D015336:Molecular Probe Techniques; D037742:Nanotubes, Carbon / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size; D011846:Radio Waves; D055672:Static Electricity; D014867:Water / Q000737:chemistry*
chemical_list: D037742:Nanotubes, Carbon; D014867:Water