The influence of laser wavelength and fluence on palladium nanoparticles produced by pulsed laser ablation in deionized water

2014 ◽  
Vol 37 ◽  
pp. 96-102 ◽  
Author(s):  
Jinil Kim ◽  
D. Amaranatha Reddy ◽  
Rory Ma ◽  
Tae Kyu Kim
Keyword(s):  
Laser Ablation ◽  
Palladium Nanoparticles ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
Laser Wavelength ◽  
Deionized Water

Synthesis of Au–Ag Alloy Nanoparticles in Deionized Water by Pulsed Laser Ablation Technique

2018 ◽  
Vol 18 (7) ◽  
pp. 4841-4851 ◽  
Author(s):  
W Norsyuhada ◽  
W. M Shukri ◽  
Noriah Bidin ◽  
Shumaila Islam ◽  
Ganesan Krishnan
Keyword(s):  
Laser Ablation ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
Deionized Water ◽  
Alloy Nanoparticles ◽  
Ablation Technique ◽  
Laser Ablation Technique

scholarly journals Tungsten disulfide nanoparticles produced by femtosecond laser ablation in water for nanophotonic applications

2021 ◽  
Vol 2015 (1) ◽  
pp. 012155
Author(s):  
G I Tselikov ◽  
A A Popov ◽  
G A Ermolaev ◽  
A V Syuy ◽  
A V Kabashin ◽  
...  
Keyword(s):  
Laser Ablation ◽  
Pulsed Laser ◽  
Femtosecond Laser Ablation ◽  
Pulsed Laser Ablation ◽  
High Refractive Index ◽  
Deionized Water ◽  
Tungsten Disulfide ◽  
Spherical Nanoparticles ◽  
Optical Analysis ◽  
Bulk Target

Abstract We demonstrate nearly spherical nanoparticles of tungsten disulfide (WS2) produced by femtosecond pulsed laser ablation of bulk target in deionized water. Structural and optical analysis reveals that produced nanospheres preserve the crystalline structure, high refractive index and support strong excitons and Mie resonances in the spectral range 400-700 nm, resulting in enhanced photothermal response probed by Raman spectroscopy.

Comparative Study of Bismuth Composites Obtained via Pulsed Laser Ablation in a Liquid and in Air for Photocatalytic Application

2020 ◽  
Vol 312 ◽  
pp. 172-178
Author(s):  
Valery A. Svetlichnyi ◽  
Elena D. Fakhrutdinova ◽  
Tatiana S. Nazarova ◽  
Sergei A. Kulinich ◽  
Olga V. Vodyankina
Keyword(s):  
Laser Ablation ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
Laser Wavelength ◽  
X Ray Diffraction ◽  
Transmission Electron ◽  
Photocatalytic Application ◽  
Vis Spectroscopy ◽  
Metallic Bismuth ◽  
Synthesized Materials

In the present work, bismuth-based nanoparticles of various compositions were obtained by pulsed laser ablation of a metallic bismuth target in water and air using a Q-switch Nd:YAG laser (wavelength of 1064 nm, pulse duration of 7 ns, frequency of 20 Hz, and pulse energy of 160 mJ). Then the samples were annealed in air at temperatures up to 600°C. A comparative analysis of the obtained powders was carried out using methods of X-ray diffraction, transmission electron microscopy, specific surface area measurements, IR-Fourier and UV-Vis Spectroscopy. The photocatalytic activity of the synthesized materials in the process of Rhodamine B decomposition under irradiation of a LED source (375 nm) was also studied.

scholarly journals Laser wavelength modulated pulsed laser ablation for selective and efficient production of graphene quantum dots

RSC Advances ◽  
2019 ◽  
Vol 9 (24) ◽  
pp. 13658-13663 ◽  
Author(s):  
Sukhyun Kang ◽  
Jeong Ho Ryu ◽  
Byoungsoo Lee ◽  
Kyung Hwan Jung ◽  
Kwang Bo Shim ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Laser Ablation ◽  
Biomedical Applications ◽  
Graphene Quantum Dots ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
Laser Wavelength ◽  
Efficient Production ◽  
Laser Ablation In Liquid ◽  
Graphene Oxide Quantum Dots

Graphene quantum dots (GQDs) and graphene oxide quantum dots (GOQDs) can be selectively produced by wavelength-modulated pulsed laser ablation in liquid (PLAL) method, which can used in different applications such as optoelectronic and biomedical applications, respectively.

Synthesis of nanoparticles by pulsed laser ablation in deionized water and optical properties

2007 ◽  
Vol 124 (1) ◽  
pp. 67-70 ◽  
Author(s):  
Jeong Ho Ryu ◽  
Bong Geun Choi ◽  
Jong-Won Yoon ◽  
Kwang Bo Shim ◽  
Kinuyo Machi ◽  
...  
Keyword(s):  
Optical Properties ◽  
Laser Ablation ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
Deionized Water ◽  
Synthesis Of Nanoparticles

Does the Subsurface Superheating Effect Really Exist?

1998 ◽  
Vol 526 ◽  
Author(s):  
Valentin Craciun ◽  
Doina Craciun
Keyword(s):  
Laser Ablation ◽  
Pulsed Laser ◽  
Target Material ◽  
Target Surface ◽  
Pulsed Laser Ablation ◽  
Laser Wavelength ◽  
Gas Release ◽  
Actual Mechanism ◽  
Emission Volume ◽  
Modification Of The Surface

AbstractThe existence inside targets during pulsed laser ablation of a sub-surface superheating effect (SSSH) has been predicted by numerical temperature estimations. The experimental evidence has been so far only indirect, based on the modification of the surface morphology caused by the explosive volume boiling induced by the SSSH effect. However, round-shaped micrometer-sized cavities formed by gas release due to volume boiling have been found on several target materials even when the temperature estimations did not predict any SSSH effect. Although the SSSH effect could exist under certain conditions, it seems that it is not a prerequisite for explosive volume boiling which is the actual mechanism responsible for droplets emission. Volume boiling could occur whenever a thick liquid layer, whose temperature is much higher than the equilibrium boiling value is formed and lasts for several tens of nanoseconds on the target surface, a situation usually found when the laser wavelength is poorly absorbed by the target material.

GROWTH OF TiO2 NANOPARTICLES BY PULSED LASER ABLATION (PLA) IN LIQUID MEDIA AND STUDY OF PHOTOCATALYTIC PROPERTIES

2008 ◽  
Vol 22 (18n19) ◽  
pp. 3193-3200 ◽  
Author(s):  
S. SHADMEHR ◽  
S. M. MAHDAVI ◽  
N. TAGHAVINIA ◽  
A. AZARIAN
Keyword(s):  
Aqueous Solution ◽  
Laser Ablation ◽  
Sodium Dodecyl ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
Laser Wavelength ◽  
Titanium Target ◽  
Mean Size ◽  
Uv Visible

We synthesized TiO 2 nanoparticles by pulsed laser ablation of titanium target immersed in an aqueous solution of surfactant sodium dodecyl sulfate (SDS) or deionized water. The surfactant concentration dependence on size of TiO 2 nanoparticles was investigated. The maximum amount of nanoparticles (with mean size of 40 nm in diameter) was obtained in an aqueous solution of 0.001 M SDS. We have also studied the effect of laser wavelength on growth of TiO 2 nanoparticles. UV/visible spectroscopy and Scanning Electron Microscopy observations were employed for characterization of optical properties and particle sizes respectively. As TiO 2 is a famous photocatalyst, we have also done photocatalytic test by Methyl Orange under UV irradiation for prepared samples.

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