Titania Nanoparticles Prepared with Pulsed Laser Ablation of Rutile Single Crystals in Water

2004 ◽  
Vol 108 (30) ◽  
pp. 10863-10871 ◽  
Author(s):  
Akira Iwabuchi ◽  
Cheow-keong Choo ◽  
Katsumi Tanaka
Keyword(s):  
Laser Ablation ◽  
Single Crystals ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
Titania Nanoparticles

Synthesis, characterization, and phase stability of ultrafine TiO2 nanoparticles by pulsed laser ablation in liquid media

2004 ◽  
Vol 19 (5) ◽  
pp. 1551-1557 ◽  
Author(s):  
Changhao Liang ◽  
Yoshiki Shimizu ◽  
Takeshi Sasaki ◽  
Naoto Koshizaki
Keyword(s):  
Heat Treatment ◽  
Aqueous Solution ◽  
Laser Ablation ◽  
Sodium Dodecyl ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
Particle Growth ◽  
Titania Nanoparticles ◽  
Laser Ablation In Liquid ◽  
Mean Size

We synthesized ultrafine TiO2 nanoparticles by pulsed laser ablation of a titanium target immersed in an aqueous solution of surfactant sodium dodecyl sulfate (SDS) or deionized water. The surfactant concentration dependence of TiO2 nanocrystal formation was systematically investigated by various characterization techniques. The maximum amount of ultrafine anatase nanocrystalline particles (with mean size of 3 nm in diameter) was obtained in an aqueous solution of 0.01 M SDS. A probable formation process was proposed based on the laser-induced reactive quenching and surfactant-mediated growth. The phase transformation and particle growth of as-prepared products were also investigated by heat treatment up to 500 °C. Single-phase anatase nanoparticles with a mean size of 8 nm were obtained by heat treatment of samples prepared in water or in a 0.01 M SDS solution. Particle size did not substantially increase through annealing, probably due to the relatively homogeneous size distribution and crystallinity of as-prepared titania nanoparticles.

scholarly journals Nonlinear Optical Response of Titania Nanoparticles Prepared by Pulsed Laser Ablation

2011 ◽  
Vol 19 ◽  
pp. 152-157 ◽  
Author(s):  
F. Moslehirad ◽  
M.H. Majles Ara ◽  
M.J. Torkamany ◽  
J. Sabbaghzadeh
Keyword(s):  
Laser Ablation ◽  
Nonlinear Optical ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
Optical Response ◽  
Nonlinear Optical Response ◽  
Titania Nanoparticles

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.

scholarly journals Doping nanoparticles using pulsed laser ablation in a liquid containing the doping agent

2019 ◽  
Vol 1 (10) ◽  
pp. 3963-3972 ◽  
Author(s):  
Arsène Chemin ◽  
Julien Lam ◽  
Gaétan Laurens ◽  
Florian Trichard ◽  
Vincent Motto-Ros ◽  
...  
Keyword(s):  
Laser Ablation ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
Doping Agent ◽  
Laser Ablation In Liquids ◽  
Dope Nanoparticles

While doping is crucial for numerous technological applications, its control remains difficult especially when the material is reduced down to the nanometric scale. We suggest a new way to dope nanoparticles using laser ablation in liquids.

scholarly journals Template-free, single step preparation of hollow Coo nano spheres using pulsed laser ablation in liquid environment

2021 ◽  
pp. 103317
Author(s):  
Muidh Alheshibri ◽  
Sultan Akhtar ◽  
Abbad Al Baroot ◽  
Khaled Elsayed ◽  
Hassan S Al Qahtani ◽  
...  
Keyword(s):  
Laser Ablation ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
Single Step ◽  
Laser Ablation In Liquid ◽  
Liquid Environment ◽  
Template Free

scholarly journals Synthesis of naked vanadium pentoxide nanoparticles

2021 ◽  
Author(s):  
Patrick Taylor ◽  
Matthew Kusper ◽  
Tina Hesabizadeh ◽  
Luke D. Geoffrion ◽  
Fumiya Watanabe ◽  
...  
Keyword(s):  
Laser Ablation ◽  
Vanadium Pentoxide ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
Energy Bandgap ◽  
Β Phase ◽  
Α Phase ◽  
Laser Ablation In Liquids

Vanadium pentoxide α-phase and β-phase synthesized by Pulsed Laser Ablation in Liquids, exhibiting a 2.50 eV and 3.65 eV energy bandgap.

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