Effects of Oxidizing Media on the Composition, Morphology and Optical Properties of Colloidal Zirconium Oxide Nanoparticles Synthesized via Pulsed Laser Ablation in Liquid Technique

2018 ◽  
Vol 18 (6) ◽  
pp. 4030-4039 ◽  
Author(s):  
M. A Gondal ◽  
T. A Fasasi ◽  
Umair Baig ◽  
A Mekki
Optik ◽  
2017 ◽  
Vol 144 ◽  
pp. 679-684 ◽  
Author(s):  
Ayman M. Mostafa ◽  
Samir A. Yousef ◽  
Wael H. Eisa ◽  
Mahmoud A. Ewaida ◽  
Emad A. Al-Ashkar

2017 ◽  
Vol 95 (7) ◽  
pp. 645-649 ◽  
Author(s):  
Shaista Shahzada ◽  
Anbarin Fatima ◽  
Asma Nazir ◽  
Arshad Mehmood ◽  
Mazhar Mehmood ◽  
...  

Quantum dot (QD) composite nanoparticles of titania germanium (TiO2–Ge) were fabricated by pulsed laser ablation of composite targets of TiO2–Ge immersed in deionized water. The single phase crystallanity, lattice parameters, and the evaluation of crystallite size of nanoparticles was investigated by X-ray diffraction (XRD). The morphology of the samples was analyzed through scanning electron microscopic studies. The average particle size calculated through XRD and measured through scanning electron microscope is in the range from 18 to 29 nm and are in agreement with each other. Compositional study was carried out through electron dispersive X-ray analysis showing that the ablation rate of Ge is smaller than TiO2. Optical properties were measured by UV–visible transmission spectra and Raman spectroscopy. The band gap of composite particles varies from the UV to the visible range by varying concentration of Ge QDs. This work shows that pulsed laser ablation in liquid media is an easy approach to synthesize ultrafine, contamination-free nanosized material, which is difficult to produce by other conventional methods.


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