Laser Irradiation of Carbon Nanotubes
Journal
Materials Chemistry and Physics
Journal Volume
72
Journal Issue
2
Pages
218-222
Date Issued
2001
Author(s)
Abstract
We report on the structural modifications of carbon nanotubes (CNT) by laser irradiation. In particular, we investigated the transformation of CNT by using Nd:YAG laser operating at 266 and 1064 nm with different energy fluences and number of pulses. After 15 pulses of 266 nm laser irradiation with a laser fluence of 80 and 60 mJ cm-2, transformation of CNT into sub-micron size plates and cauliflower type aggregation of carbon deposits, respectively, were observed. At a fixed laser fluence of 400 mJ cm-2 (1064 nm) transformation of CNT into carbon mass protrusions with progressive sharper aspect ratio was obtained by increasing number of laser pulses. Our investigations demonstrate that a selective area transformation can be controlled by the laser fluence and number of pulses. © 2001 Elsevier Science B.V. All rights reserved.
Publisher
Elsevier B.V.
Type
journal article