Entrapping of Exohedral Metallofullerenes in Carbon Nanotubes: (CsC_(60))_n@SWNT Nano-Peapods

摘要

Single-wall carbon nanotubes (SWNTs) have a fascinating ability to encapsulate atoms or molecules into their one-dimensional nanospace.So far,a large number of different organic and inorganic species,such as fullerenes,metallofullerenes,single element,ionic salt,and H_2O,have been demonstrated to be introduced into their cavity.Among those,the peapods encapsulating endohedral metallofullerenes have exhibited the most intriguing behaviors in any filled SWNTs.For example,the band gap of SWNTs can be narrowed from 0.5 to 0.1 eV after inserting Gd@C_(82) metallofullerenes into SWNTs,indicating that such peapods can become novel electronic devices,such as ambipolar field-effect transistors (FET).