Generation of various carbon nanostructures in water using IR/UV laser ablation

A wide variety of carbon nanostructures were generated by a Q-switched Nd : YAG laser (1064 nm) while mostly nanodiamonds were created by an ArF excimer laser (193 nm) in deionized water. They were characterized by transmission electron microscopy, Raman spectroscopy and x-ray photoelectron spectros...

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Bibliographic Details
Published in:Journal of physics. D, Applied physics Applied physics, 2013-04, Vol.46 (16), p.165303-1-9
Main Authors: Mortazavi, Seyedeh Zahra, Parvin, Parviz, Reyhani, Ali, Mirershadi, Soghra, Sadighi-Bonabi, Rasoul
Format: Article
Language:English
Subjects:
Bremsstrahlung
Carbon
Carbon nanostructures
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Excimer lasers
Infrared radiation
Laser ablation
Laser deposition
Laser induced breakdown spectroscopy
Lasers
Materials science
Methods of deposition of films and coatings
film growth and epitaxy
Nanocomposites
Nanodiamonds
Nanomaterials
Nanostructure
Physics
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Summary:A wide variety of carbon nanostructures were generated by a Q-switched Nd : YAG laser (1064 nm) while mostly nanodiamonds were created by an ArF excimer laser (193 nm) in deionized water. They were characterized by transmission electron microscopy, Raman spectroscopy and x-ray photoelectron spectroscopy. It was found that the IR laser affected the morphology and structure of the nanostructures due to the higher inverse bremsstrahlung absorption rate within the plasma plume with respect to the UV laser. Moreover, laser-induced breakdown spectroscopy was carried out so that the plasma created by the IR laser was more energetic than that generated by the UV laser.
ISSN:0022-3727
1361-6463
DOI:10.1088/0022-3727/46/16/165303