نتایج جستجو برای: pulsed laser ablation, colloidal tungsten oxide

تعداد نتایج: 447894  

2011
Raid A. Ismail Abdulrahman K. Ali Mukhlis M. Ismail Khaleel I. Hassoon

Pulsed laser ablation in liquid was employed to synthesize zinc oxide (ZnO) nanocolloidal suspension. Colloidal ZnO nanocrystals are synthesized by pulsed laser ablation of high purity zinc target in double distilled water with various laser fluences at RT. UV–visible absorption and transmission electron microscope are used for the characterization of colloidal ZnO nanoparticles (NPs). The opti...

Nanostructured SnO2 thin films were prepared using Electron Beam-Physical Vapor Deposition (EB-PVD) technique. Then Ag nanoparticles synthesized by laser-pulsed ablation were sprayed on the films. In order to form a homogenous coated of SnO2 on the glass surface, it was thermally treated at 500°C for 1 h. At this stage, the combined layer on the substrate was completely dried for 8 h in the air...

mina eslamifar, nastaran mansour,

In this work, thermo-optical properties of gold nanoparticle colloids are studied using continuous wave (CW) laser irradiation at 532 nm. The nanoparticle colloids are fabricated by 18 ns pulsed laser ablation of pure gold plate in the distilled water. The formation of the nanoparticles has been evidenced by optical absorption spectra and transmission electron microscopy. The nonlinear optical ...

2009
R. Gopal S. C. Singh R. K. Swarnkar

Nickel ferrite nanoparticles are synthesized by pulsed laser ablation of corresponding bulk target in the double distilled water. Focused output of fundamental and third harmonics from pulsed Nd:YAG laser operating at 40 and 25 mJ/pulse energy respectively was allowed to irradiate the target. Produced colloidal solution was red in color and stable for several days. XRD, FTIR, VSM techniques are...

Journal: :Chemphyschem : a European journal of chemical physics and physical chemistry 2017
Carl M Blumenfeld Marcus Lau Harry B Gray Astrid M Müller

Globally scalable sunlight-driven devices that convert solar energy into storable fuels will require efficient light absorbers that are made of non-precious elements. Suitable photoanode materials are yet to be discovered. Here we utilised the timesaving nature of pulsed-laser-in-liquids synthesis and prepared a series of neat and mixed-metal tungsten oxide photoanode materials to investigate t...

Journal: :Fizika tverdogo tela 2022

The structure, optical and magneto-optical properties of colloidal solutions iron oxide nanoparticles obtained by pulsed ablation in distilled water, both without additives with various functional additives: gold-hydrochloric acid, silicon oxide, polyvinylpyrrolidone, have been studied. It is shown that the main magnetic phase magnetite Fe 3 O 4 . size distribution degree their agglomeration de...

2011
Mohamed Boutinguiza Rafael Comesaña Fernando Lusquiños Antonio Riveiro Juan Pou

Laser ablation of solids in liquids technique has been used to obtain colloidal nanoparticles from biological hydroxylapatite using pulsed as well as a continuous wave (CW) laser. Transmission electron microscopy (TEM) measurements revealed the formation of spherical particles with size distribution ranging from few nanometers to hundred nanometers and irregular submicronic particles. High reso...

Journal: :Physical chemistry chemical physics : PCCP 2013
Zijie Yan Ruqiang Bao Douglas B Chrisey

Pulsed laser ablation in liquid (PLAL) has been well established as a facile method to produce nanoparticles from bulk materials, but it is still insufficient for fabricating anisotropic and complex nanostructures, especially without the use of surfactants. Here, we demonstrate that silver (Ag) nanosheets can be produced by pulsed excimer laser ablation of bulk Ag in water via laser re-processi...

ameneh farnood, Hadi Salamati Mehdi Ranjbar,

Nowadays, hydrogen has attracted significant attention as a next generation clean energy source. Hydrogen is highly flammable, so detection of hydrogen gas is required. Gold nanoparticle based localized surface plasmon resonance (LSPR) is an advanced and powerful sensing technique, which is well known for its high sensitivity to surrounding refractive index change in the local environment. We p...

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