Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Cleaning of carbon nanotubes near the π-plasmon resonance



Katie Hurst, Darryl A. Keenan, John H. Lehman, Anne Dillon


The cleaning of bulk carbon single-walled nanotubes (SWNTs) by use of a 248 nm excimer laser is verified with imaging, and quantitative evaluation of morphology and composition. A 5% change in responsivity of a pyroelectric detector coated with SWNTs is presented as a novel assessment of the change in SWNT coating topology. Changes in purity are shown by reduced full-width-at-half-maximum of the Raman D-band for 248 nm exposure up to 755 mW/cm2. The 248 nm (5 eV) photon?plasmon resonance is considered as a mechanism for the reduction of impurities and an intermediate stage of purification.
Chemical Physics Letters


carbon nanotube, excimer laser, purification, raman spectroscopy, spectral responsivity


Hurst, K. , Keenan, D. , Lehman, J. and Dillon, A. (2006), Cleaning of carbon nanotubes near the π-plasmon resonance, Chemical Physics Letters, [online], (Accessed April 15, 2024)
Created November 7, 2006, Updated January 27, 2020