One-step preparation of YVO4:Eu3+ nanoparticles by pulsed laser ablation

2016 ◽  
Vol 683 ◽  
pp. 1-6 ◽  
Author(s):  
Haohao Wang ◽  
Osamu Odawara ◽  
Hiroyuki Wada
Keyword(s):  
Laser Ablation ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
One Step

Synthesis of N-doped graphene quantum dots by pulsed laser ablation with diethylenetriamine (DETA) and their photoluminescence

2017 ◽  
Vol 19 (33) ◽  
pp. 22395-22400 ◽  
Author(s):  
S. R. M. Santiago ◽  
T. N. Lin ◽  
C. H. Chang ◽  
Y. A. Wong ◽  
C. A. J. Lin ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Laser Ablation ◽  
Graphene Quantum Dots ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
Doped Graphene ◽  
One Step

We report a facile, fast, and one-step approach to prepare N-doped graphene quantum dots (GQDs) using pulsed laser ablation with diethylenetriamine (DETA).

scholarly journals One-step synthesis of sulfur-incorporated graphene quantum dots using pulsed laser ablation for enhancing optical properties

2020 ◽  
Vol 28 (15) ◽  
pp. 21659 ◽  
Author(s):  
Sukhyun Kang ◽  
Young Kyu Jeong ◽  
Kyung Hwan Jung ◽  
Yong Son ◽  
Won Rae Kim ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Laser Ablation ◽  
Graphene Quantum Dots ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
One Step

scholarly journals Fluorescent Nanodiamonds Synthesized in One-Step by Pulsed Laser Ablation of Graphite in Liquid-Nitrogen

2021 ◽  
Vol 7 (2) ◽  
pp. 49
Author(s):  
Massimo Cazzanelli ◽  
Luca Basso ◽  
Claudio Cestari ◽  
Nicola Bazzanella ◽  
Enrico Moser ◽  
...  
Keyword(s):  
Laser Ablation ◽  
Liquid Nitrogen ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
Optical Quality ◽  
Graphite Target ◽  
Target Movement ◽  
High Pressure High Temperature ◽  
One Step ◽  
Fluorescent Nanodiamonds

In this work, we present a relevant upgrade to the technique of pulsed laser ablation of fluorescent nanodiamonds (NDs), relying on an automatized graphite-target movement maintaining a constant level of liquid nitrogen over its surface during hours of deposition. Around 60 mg of NDs nanopowder was synthesized and optomagnetically characterized to assess its optical quality. Chemical purification of the ablated nanopowders, which removes the graphitic byproducts, permits to obtain pure fluorescent NDs with an efficiency of 7 ± 1% with respect to the total nanopowder mass. This value compares positively with the efficiency of other commercial NDs synthesis techniques such as detonation, cavitation, and high pressure–high temperature.

Origin of tunable photoluminescence from graphene quantum dots synthesized via pulsed laser ablation

2016 ◽  
Vol 18 (32) ◽  
pp. 22599-22605 ◽  
Author(s):  
S. R. M. Santiago ◽  
T. N. Lin ◽  
C. T. Yuan ◽  
J. L. Shen ◽  
H. Y. Huang ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Quantum Dots ◽  
Laser Ablation ◽  
Multiwalled Carbon Nanotubes ◽  
Graphene Quantum Dots ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
Multiwalled Carbon ◽  
One Step ◽  
Functionalized Multiwalled Carbon Nanotubes

A one-step synthesis of graphene quantum dots (GQDs) has been implemented using pulsed laser ablation (PLA) with carboxyl-functionalized multiwalled carbon nanotubes (MWCNTs).

Laser-ablation production of graphene oxide nanostructures: from ribbons to quantum dots

Nanoscale ◽  
2015 ◽  
Vol 7 (6) ◽  
pp. 2708-2715 ◽  
Author(s):  
T. N. Lin ◽  
K. H. Chih ◽  
C. T. Yuan ◽  
J. L. Shen ◽  
C. A. J. Lin ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Graphene Oxide ◽  
Laser Ablation ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
Step Method ◽  
Oxide Nanostructures ◽  
One Step

A new one-step method for the preparation of graphene oxide (GO) nanostructures has been developed by pulsed laser ablation in GO solution.

Observations on the growth of YBa2Cu3O7-δ thin films on MgO by pulsed-laser ablation

1991 ◽  
Vol 49 ◽  
pp. 1068-1069
Author(s):  
M. Grant Norton ◽  
C. Barry Carter
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Laser Ablation ◽  
Substrate Surface ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
Thin Film Deposition ◽  
Film Deposition ◽  
Laser Ablation Process ◽  
Deposition Parameters

Pulsed-laser ablation has been widely used to produce high-quality thin films of YBa2Cu3O7-δ on a range of substrate materials. The nonequilibrium nature of the process allows congruent deposition of oxides with complex stoichiometrics. In the high power density regime produced by the UV excimer lasers the ablated species includes a mixture of neutral atoms, molecules and ions. All these species play an important role in thin-film deposition. However, changes in the deposition parameters have been shown to affect the microstructure of thin YBa2Cu3O7-δ films. The formation of metastable configurations is possible because at the low substrate temperatures used, only shortrange rearrangement on the substrate surface can occur. The parameters associated directly with the laser ablation process, those determining the nature of the process, e g. thermal or nonthermal volatilization, have been classified as ‘primary parameters'. Other parameters may also affect the microstructure of the thin film. In this paper, the effects of these ‘secondary parameters' on the microstructure of YBa2Cu3O7-δ films will be discussed. Examples of 'secondary parameters' include the substrate temperature and the oxygen partial pressure during deposition.

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