scholarly journals Microstructural and plasmonic modifications in Ag–TiO2 and Au–TiO2 nanocomposites through ion beam irradiation

2014 ◽  
Vol 5 ◽  
pp. 1419-1431 ◽  
Author(s):  
Venkata Sai Kiran Chakravadhanula ◽  
Yogendra Kumar Mishra ◽  
Venkata Girish Kotnur ◽  
Devesh Kumar Avasthi ◽  
Thomas Strunskus ◽  
...  
Keyword(s):  
Thin Films ◽  
Ion Beam ◽  
Nanocomposite Films ◽  
Beam Irradiation ◽  
Ion Beam Irradiation ◽  
Structural Modifications ◽  
Transmission Electron ◽  
Nanocomposite Thin Films ◽  
Before And After ◽  
Metal Volume

The development of new fabrication techniques of plasmonic nanocomposites with specific properties is an ongoing issue in the plasmonic and nanophotonics community. In this paper we report detailed investigations on the modifications of the microstructural and plasmonic properties of metal–titania nanocomposite films induced by swift heavy ions. Au–TiO2 and Ag–TiO2 nanocomposite thin films with varying metal volume fractions were deposited by co-sputtering and were subsequently irradiated by 100 MeV Ag8+ ions at various ion fluences. The morphology of these nanocomposite thin films before and after ion beam irradiation has been investigated in detail by transmission electron microscopy studies, which showed interesting changes in the titania matrix. Additionally, interesting modifications in the plasmonic absorption behavior for both Au–TiO2 and Ag–TiO2 nanocomposites were observed, which have been discussed in terms of ion beam induced growth of nanoparticles and structural modifications in the titania matrix.

Investigation of the Mechanism of Conductivity of NbN Thin Films, Modified Under Composite Ion Beam Irradiation

2016 ◽  
Vol 7 (3) ◽  
pp. 172-179 ◽  
Author(s):  
B. A. Gurovich ◽  
K. E. Prikhodko ◽  
M. A. Tarkhov ◽  
A. G. Domantovsky ◽  
D. A. Komarov ◽  
...  
Keyword(s):  
Thin Films ◽  
Ion Beam ◽  
Beam Irradiation ◽  
Ion Beam Irradiation

Effect of 200 MeV Ag15+ ion beam irradiation at different fluences on WO3 thin films

2019 ◽  
Vol 439 ◽  
pp. 51-58 ◽  
Author(s):  
R. Rathika ◽  
M. Kovendhan ◽  
D. Paul Joseph ◽  
A. Sendil Kumar ◽  
K. Vijayarangamuthu ◽  
...  
Keyword(s):  
Thin Films ◽  
Ion Beam ◽  
Beam Irradiation ◽  
Ion Beam Irradiation ◽  
Wo3 Thin Films

scholarly journals Tailoring the properties of spray deposited V2O5 thin films using swift heavy ion beam irradiation

2020 ◽  
Vol 52 (11) ◽  
pp. 2585-2593 ◽  
Author(s):  
R. Rathika ◽  
M. Kovendhan ◽  
D. Paul Joseph ◽  
Rekha Pachaiappan ◽  
A. Sendil Kumar ◽  
...  
Keyword(s):  
Thin Films ◽  
Ion Beam ◽  
Heavy Ion ◽  
Beam Irradiation ◽  
Ion Beam Irradiation ◽  
Swift Heavy Ion ◽  
Heavy Ion Beam ◽  
V2o5 Thin Films

Correlation between surface phonon mode and luminescence in nanocrystalline CdS thin films: An effect of ion beam irradiation

2014 ◽  
Vol 116 (4) ◽  
pp. 043517 ◽  
Author(s):  
Pragati Kumar ◽  
Nupur Saxena ◽  
Vinay Gupta ◽  
Fouran Singh ◽  
Avinash Agarwal
Keyword(s):  
Thin Films ◽  
Phonon Mode ◽  
Ion Beam ◽  
Beam Irradiation ◽  
Ion Beam Irradiation ◽  
Surface Phonon ◽  
Cds Thin Films ◽  
Surface Phonon Mode

ION BEAM IRRADIATION EFFECTS ON SURFACE MORPHOLOGY AND OPTICAL PROPERTIES OF ZnO/PVA COMPOSITES

2020 ◽  
Vol 27 (09) ◽  
pp. 1950214 ◽  
Author(s):  
A. ATTA ◽  
A. M. ABDEL REHEEM ◽  
E. ABDELTWAB
Keyword(s):  
Ion Beam ◽  
Polymer Nanocomposite ◽  
Ion Source ◽  
Optical Bandgap ◽  
Nanocomposite Films ◽  
Beam Irradiation ◽  
Visible Spectroscopy ◽  
Ion Beam Irradiation ◽  
Zno Nps ◽  
Uv Visible

Polymer nanocomposites composed of zinc oxide nanoparticles (ZnO NPs)-doped polyvinyl alcohol (PVA) polymer matrix have been synthesized using solvent casting preparation method. The ZnO/PVA polymer nanocomposite films are irradiated with different argon ion beam fluences using broad-beam ion source. The prepared films are characterized using X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and UV–visible spectroscopy. The XRD shows that ZnO NPs are successfully formed on PVA polymer and the mean size of ZnO NPs is 31.2[Formula: see text]nm. The FTIR peaks indicate that ZnO NPs are attached to the polymer chains, whereas the SEM analysis shows that ZnO NPs are homogeneously dispersed into the PVA polymer surface. The optical bandgap, band tail width and number of carbon atoms in cluster are obtained and discussed using UV–visible spectroscopy. The transmittance is shown with low transmittance intensity in the UV region with the addition of ZnO NPs and ion beam irradiation. The optical bandgap [Formula: see text] showed significant decrease from 5.25[Formula: see text]eV for pristine PVA to 3.10[Formula: see text]eV by adding ZnO and from 3.10[Formula: see text]eV for un-irradiated ZnO/PVA to 2.98[Formula: see text]eV after being irradiated by [Formula: see text][Formula: see text]cm[Formula: see text]. The number of carbon atoms in cluster [Formula: see text] is increased by ZnO addition, whereas the Urbach energy [Formula: see text] is decreased. These results confirmed that there are significant modifications in PVA polymer, and the produced flexible ZnO/PVA is a good polymer nanocomposite film for technological applications.

Effect of 100 MeV O7+ ion beam irradiation on structural, optical and electronic properties of SnO2 thin films

2010 ◽  
Vol 165 (12) ◽  
pp. 930-937 ◽  
Author(s):  
Aditya Sharma ◽  
K. D. Verma ◽  
Mayora Varshney ◽  
Devendra Singh ◽  
Moti Singh ◽  
...  
Keyword(s):  
Thin Films ◽  
Electronic Properties ◽  
Ion Beam ◽  
Beam Irradiation ◽  
Ion Beam Irradiation ◽  
Optical And Electronic Properties ◽  
Sno2 Thin Films
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