Thermally activated low frequency noise in carbon nanotubes

Autor: Shahed Reza, Andrew G. Rinzler, Quyen T. Huynh, Gijs Bosman, Jennifer Sippel-Oakley
Rok vydání: 2006
Předmět:
Zdroj: Journal of Applied Physics. 99:114309
ISSN: 1089-7550
0021-8979
DOI: 10.1063/1.2202233
Popis: The low frequency noise of single-walled carbon nanotubes is studied over the 77–300K temperature range. Lorentzian shaped spectra along with 1∕f noise spectra have been observed. From the Lorentzian noise components, a range of thermal activation energies from 0.08to0.51eV for the associated fluctuation mechanisms is obtained. From the 1∕f noise spectra, a distribution of activation energies of fluctuation processes ranging from 0.2to0.7eV is derived. These findings indicate that the observed noise spectra are caused by number fluctuations.
Databáze: OpenAIRE