Cap Closing of Thin Carbon Nanotubes (pages 451–455)
N. de Jonge, M. Doytcheva, M. Allioux, M. Kaiser, S. A. M. Mentink, K. B. K. Teo, R. G. Lacerda and W. I. Milne
Version of Record online: 18 FEB 2005 | DOI: 10.1002/adma.200400266
Closing individual, thin, multiwalled carbon nanotubes is performed in situ in a transmission electron microscope (see Figure). The closure of the initially open end of the nanotube results from the presence of a strong electric field and the accompanied electron emission. The closed-cap nanotubes exhibit high current stability, which is of advantage for their use as electron sources.