Effects on insulators of swift-heavy-ion irradiation: ion-track technology

Virk, H.S.; Kaur, Sukhnandan; Randhawa, Gurpreet

doi:10.1088/0022-3727/31/21/020

Cited by 35 publications

(11 citation statements)

References 27 publications

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“…Swift heavy ion (SHI) irradiation produces modifications in bulk localized and surface properties of the materials depending upon the irradiation dose, atomic mass and energy of the ion beam used [1].…”

Section: Introductionmentioning

confidence: 99%

Damage creation in swift heavy ion-irradiated calcite single crystals: Raman and Infrared study

Nagabhushana¹,

Prashantha²,

Nagabhushana³

et al. 2008

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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a b s t r a c tRaman and Infrared studies were carried out on pristine and 100 MeV Ag 8+ ion irradiated calcite single crystals in the fluence range 1 × 10 11 to 1 × 10 13 ions/cm 2 . Raman and Infrared modes were assigned according to factor theory analysis. It is observed that the intensities of the Raman and infrared bands decrease with increase of ion fluence. The decrease of these bands is attributed to breakage of carbonate ions and other details are discussed.

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Section: Introductionmentioning

confidence: 99%

Damage creation in swift heavy ion-irradiated calcite single crystals: Raman and Infrared study

Nagabhushana¹,

Prashantha²,

Nagabhushana³

et al. 2008

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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“…The absorption of light energy by polymeric materials in UV and Visible regions involves promotion of electrons in and orbitals from the ground state to higher energy states which are described by molecular orbital [16]. Ion beam interaction with polymer generates damage which leads to the formation of new defects and new charge states.…”

Section: Resultsmentioning

confidence: 99%

Study of optical band gap and carbon cluster sizes formed in 100 MeV Si8+ and 145 MeV Ne6+ ions irradiated polypropylene polymer

et al. 2009

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A wide variety of material modifications in polymers have been studied by using ion irradiation techniques. Extensive research has focused on to Swift Heavy Ions (MeV's energy), probably because of good controllability and the large penetration length in polymers. High energy ion irradiation tends to damage polymers significantly by electronic excitation and ionization. It may result into the creation of latent tracks and can also cause formation of radicals such as ablation, sputtering, chain scission and intermolecular cross-linking, creation of triple bonds and unsaturated bonds and loss volatile fragments. Polypropylene polymer films of thickness 50 μm were irradiated to the fluences of 1 × 10 10 , 3 × 10 10 , 1 × 10 , 10 12 and 10 13 ions/cm 3 from Variable Energy Cyclotron Centre, Kolkata. Optical modifications were characterized by UV towards the red end of the spectrum with the increase of the fluence. Value of optical band gap E g shows a decreasing trend with ion fluence irradiated with both kinds of ions. Cluster size N, the number of carbon atoms per conjugation length increases with increasing ion dose. Cluster size also increases with the increase of electronic stopping power.

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“…[24][25][26][27] The change in composition due to hydrogen release and the combination of the free radical with oxygen after irradiation is one of the reasons in changing the properties of organic materials. [28][29][30][31][32][33] Recently, improving the surface properties of polymers, such as surface free energy and wettability to cope the difficulties resulted from the hydrophobic nature of the polymer, became an important issue. The change in the biocompatible parameters depends mainly on the amount of oxygen uptake and/or polar groups as well as on the surface roughness.…”

Section: Introductionmentioning

confidence: 99%

Low-energy He-ion beam modifications the surface properties of biomaterial

Abdul-Kader

Radwan

2015

Journal of Adhesion Science and Technology

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In the present work, ultra-high-molecular-weight polyethylene (UHMWPE) films were irradiated with 130 keV He ions. The fluence of the ion beam was ranged from 1 × 10 12 to 1 × 10 16 cm −2 . The chemical, morphological, and crystallite structure changes resulted from the ion bombardment were obtained using different spectroscopic techniques. These techniques were Fourier transform infrared spectrometer, scanning electron microscope, X-ray diffraction, and UV-vis spectrophotometry. The surface free energy for untreated and ion-beam-treated samples was determined by means of contact angle measurements of three different liquids. Our results showed a decrease in the crystallinity of UHMWPE and formation of C=O groups on the polymer surface for modified samples as well. A remarkable shifting in the UV-vis spectra toward lower energy and increase in the optical absorption were observed as the ion fluence increases. Measurements of the contact angle indicate remarkable increase in the surface free energy as a function of ion fluence.

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Effects on insulators of swift-heavy-ion irradiation: ion-track technology

Cited by 35 publications

References 27 publications

Damage creation in swift heavy ion-irradiated calcite single crystals: Raman and Infrared study

Damage creation in swift heavy ion-irradiated calcite single crystals: Raman and Infrared study

Study of optical band gap and carbon cluster sizes formed in 100 MeV Si8+ and 145 MeV Ne6+ ions irradiated polypropylene polymer

Low-energy He-ion beam modifications the surface properties of biomaterial

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