scholarly journals Tunable Piezophotonic Effect on Core-Shell Nanoparticles Prepared by Laser Ablation in Liquids under External Voltage

2019 ◽  
Vol 2019 ◽  
pp. 1-11 ◽  
Author(s):  
A. K. Kodeary ◽  
S. M. Hamidi
Keyword(s):  
Laser Ablation ◽  
Lead Zirconate Titanate ◽  
Laser Pulses ◽  
Lead Zirconate ◽  
Core Shell ◽  
Laser Ablation In Liquid ◽  
Shell Nanoparticles ◽  
Nonlinear Properties ◽  
Shell Nanostructures ◽  
Core Shell Nanoparticles

We report an experimental study on the piezophotonic effect of gold and lead zirconate titanate (PbZrTiO3) nanoparticles (NPs) and also their core-shell nanostructures prepared by the laser ablation in liquid method. To obtain these NPs and composite materials, the targets were immersed in deionized water and a polymeric solution of polyvinyl pyrrolidone (PVP) under Nd:YAG laser pulses irradiation. Linear and nonlinear properties of these NPs were studied by optical spectroscopy and the Z-scan technique. Furthermore, tunable nonlinear properties of the NPs were measured under an external electric field under illumination to investigate the piezophotonic effect. Our results show that, at the interface of PZT and Au, due to the Schottky barrier, we have electron/hole recombination prevention, which leads to efficient enhancement in the nonlinear properties.

Generation of core–shell nanoparticles Al@Ti by laser ablation in liquid for hydrogen storage

2015 ◽  
Vol 348 ◽  
pp. 71-74 ◽  
Author(s):  
A.A. Serkov ◽  
E.V. Barmina ◽  
A.V. Simakin ◽  
P.G. Kuzmin ◽  
V.V. Voronov ◽  
...  
Keyword(s):  
Laser Ablation ◽  
Hydrogen Storage ◽  
Core Shell ◽  
Laser Ablation In Liquid ◽  
Shell Nanoparticles ◽  
Core Shell Nanoparticles

scholarly journals Synthesis of Ag/Au (core/shell) nanoparticles by laser ablation in liquid and study of their toxicity on blood human components

2021 ◽  
Vol 1795 (1) ◽  
pp. 012013
Author(s):  
Mayada A. Abed ◽  
Falah A-H. Mutlak ◽  
Ala F. Ahmed ◽  
Uday M. Nayef ◽  
Sarah K. Abdulridha ◽  
...  
Keyword(s):  
Laser Ablation ◽  
Core Shell ◽  
Laser Ablation In Liquid ◽  
Shell Nanoparticles ◽  
Core Shell Nanoparticles

scholarly journals Core@shell Nanoparticles: Greener Synthesis Using Natural Plant Products

2018 ◽  
Vol 8 (3) ◽  
pp. 411 ◽  
Author(s):  
Mehrdad Khatami ◽  
Hajar Alijani ◽  
Meysam Nejad ◽  
Rajender Varma
Keyword(s):  
Large Scale ◽  
Hybrid Nanoparticles ◽  
Target Cells ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Environmental Friendliness ◽  
Shell Nanostructures ◽  
Greener Synthesis ◽  
Core Shell Nanoparticles ◽  
Synthesis Of Nanostructures

Among an array of hybrid nanoparticles, core-shell nanoparticles comprise of two or more materials, such as metals and biomolecules, wherein one of them forms the core at the center, while the other material/materials that were located around the central core develops a shell. Core-shell nanostructures are useful entities with high thermal and chemical stability, lower toxicity, greater solubility, and higher permeability to specific target cells. Plant or natural products-mediated synthesis of nanostructures refers to the use of plants or its extracts for the synthesis of nanostructures, an emerging field of sustainable nanotechnology. Various physiochemical and greener methods have been advanced for the synthesis of nanostructures, in contrast to conventional approaches that require the use of synthetic compounds for the assembly of nanostructures. Although several biological resources have been exploited for the synthesis of core-shell nanoparticles, but plant-based materials appear to be the ideal candidates for large-scale green synthesis of core-shell nanoparticles. This review summarizes the known strategies for the greener production of core-shell nanoparticles using plants extract or their derivatives and highlights their salient attributes, such as low costs, the lack of dependence on the use of any toxic materials, and the environmental friendliness for the sustainable assembly of stabile nanostructures.

Core-Shell SiO2/Ag Composite Spheres Prepared by Electrical Exploding Wire Plasma Technique: Synthesis and Characterization

2021 ◽  
Vol 19 (10) ◽  
pp. 82-88
Author(s):  
Duaa A. Uamran ◽  
Qasim Hassan Ubaid ◽  
Hammad R. Humud
Keyword(s):  
Laser Pulse ◽  
Laser Pulses ◽  
Structural Features ◽  
Optical Absorption Spectroscopy ◽  
Core Shell ◽  
X Ray Diffraction ◽  
Shell Nanoparticles ◽  
X Ray ◽  
Photocatalytic Activities ◽  
Core Shell Nanoparticles

Core-shell nanoparticles (SiO2/Ag) were manufactured by using a two-step process: Electric detonation of Ag. Wire in colloidal solution particles then by using laser pulses, nanoparticles are released. The structural features of these nanoparticles were checked by using X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX). The (XRD) study showed the progressive coverage of SiO2/Ag by nanoparticles according to the energies of the laser pulse. Measurements of morphology and EDX confirmed the Core/shell structure with particle size at the nano level. It confirmed that preliminary analysis consists of a SiO2 core and an Ag shell from FESEM. The surface of the microscopic balls (SiO2) has been covered completely and homogeneously with Ag nanoparticles, Moreover, Ultraviolet-Visible, and by optical absorption spectroscopy, the Nanoparticles with core crust SiO2/Ag showed excellent photocatalytic activities at various concentrations and laser pulse energy.

Formation of Core-Shell Nanoparticles by Laser Ablation of Copper and Brass in Liquids

2005 ◽  
pp. 23-26
Author(s):  
P.V. Kazakevich ◽  
A.V. Simakin ◽  
V.V. Voronov ◽  
G.A. Shafeev ◽  
D. Starikov ◽  
...  
Keyword(s):  
Laser Ablation ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Core Shell Nanoparticles

Biofunctional magnetic ‘core–shell’ nanoparticles generated by laser ablation of iron in liquid

Laser Physics ◽  
2015 ◽  
Vol 25 (2) ◽  
pp. 025607 ◽  
Author(s):  
A I Omelchenko ◽  
E N Sobol ◽  
A V Simakin ◽  
A A Serkov ◽  
I A Sukhov ◽  
...  
Keyword(s):  
Laser Ablation ◽  
Magnetic Core ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Core Shell Nanoparticles
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