The mechanism of the surface morphology transformation for the carbon nanotube thin film irradiated via excimer laser

In this paper, the surface morphology transformation of the sprayed carbon nanotube (CNT) thin film irradiated with the excimer laser has been systematically investigated. Under the excimer-laser irradiation, two phenomena, including the annealing and ablation effects, were found to be dependent on...

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Bibliographic Details
Published in:Applied physics letters 2013-05, Vol.102 (18)
Main Authors: Chien, Yun-Shan, Lee, I-Che, Yang, Po-Yu, Wang, Chao-Lung, Tsai, Wan-Lin, Wang, Kuang-Yu, Chou, Chia-Hsin, Cheng, Huang-Chung
Format: Article
Language:English
Subjects:
ABLATION
ANNEALING
CARBON NANOTUBES
ENERGY DENSITY
EXCIMER LASERS
INTERFACES
IRRADIATION
LASER RADIATION
MODIFICATIONS
NANOSCIENCE AND NANOTECHNOLOGY
SPRAYS
SURFACES
THIN FILMS
TRANSFORMATIONS
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Summary:In this paper, the surface morphology transformation of the sprayed carbon nanotube (CNT) thin film irradiated with the excimer laser has been systematically investigated. Under the excimer-laser irradiation, two phenomena, including the annealing and ablation effects, were found to be dependent on the incident laser energy and overlapping ratios. Moreover, the extremely high protrusions would be produced in the interface between the annealing and ablation regions. The mechanism of the CNT thin film under the excimer laser irradiation was, therefore, proposed to derive the surface morphology modifications and the further reinforced crystallinity with proper laser energy densities and overlapping ratios.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4804292