Nano tracks in fullerene film by dense electronic excitations

Kumar, P.; Avasthi, D.K.; Ghatak, J.; Satyam, P. V.; Prakash, Rajiv; Kumar, Amit

doi:10.1016/j.apsusc.2014.05.148

Cited by 7 publications

(2 citation statements)

References 40 publications

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“…They observed the largest ion track of ~20 nm in diameter under 30 MeV C 60 irradiation. Furthermore, they observed that the diameter increased in proportional to S e , which was different from the conventional one that the square of the diameter is proportional to the S e. To explain the dependence, Kumar et al ., proposed the Coulomb explosion model for the track formation in C 60 films 35 . Kitayama et al .…”

Section: Discussionmentioning

confidence: 99%

C60 ions of 1 MeV are slow but elongate nanoparticles like swift heavy ions of hundreds MeV

Amekura

Narumi

Chiba

et al. 2019

Sci Rep

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This study reports that high fluence fullerene ion (C60+) irradiation of 1–6 MeV, which was made possible by a new-type of high-flux ion source, elongates metal nanoparticles (NPs) in amorphous SiO2 as efficiently as swift heavy ions (SHIs) of 200 MeV Xe14+, i.e., two orders of the magnitude higher energy ions. Comparing the irradiation effects induced by both the beams, the stopping processes of C60 ions in SiO2 are discussed in this paper. Despite of having almost the same elongation efficiency, the C60+ irradiation induced ~10 times more efficient sputtering due to the clustering enhancement and/or the synergy effect. Ion tracks of ~10.4 nm in diameter and 60–80 nm in length were observed in crystalline SiO2 under 4 MeV C60 irradiation. While the track diameter was comparable to those by SHIs of the same electronic stopping, much shorter track lengths than those predicted by a rigid C60 molecule model indicates that the fragmentation occurred due to nuclear collisions. The elongation of the metal NPs was induced only down to the depth where the tracks were observed but not beyond.

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Section: Discussionmentioning

confidence: 99%

C60 ions of 1 MeV are slow but elongate nanoparticles like swift heavy ions of hundreds MeV

Amekura

Narumi

Chiba

et al. 2019

Sci Rep

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show abstract

“…10 Several studies have been performed by our as well as other groups on modification of structural, electrical, optical and surface properties of fullerene C 60 by SHI irradiation. 11-22 A complete study on fullerene C 60 has been reported by Bajwa et al . 18 She has demonstrated a curve between electron energy loss and damage cross-section for various types of ions and energy.…”

Section: Introductionmentioning

confidence: 99%

Surface and structural studies of fullerene C₇₀under ion irradiation

Sharma

Singhal

Vishnoi

et al. 2016

Surface Engineering

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Thin films of C 70 were grown on double side polished silicon substrate by resistive heating of C 70 powder. These films were irradiated with 90 MeV Si 7+ ions at different fluences in the range from 1 × 10 12 to 6 × 10 13 ions cm −2 . The investigations on structural and surface modifications were made (after irradiation) by Raman spectroscopy and atomic force microscopy (AFM), respectively. Raman spectroscopic studies reveal that C 70 is not completely transformed into amorphous carbon at a fluence of 6 × 10 13 ions cm −2 . Swift heavy ion irradiation generates nanometre size conducting tracks in fullerenes. For 90 MeV Si ions irradiated C 70 fullerene, the damage crosssection (σ) and radius of damaged cylindrical zone were estimated from Raman spectra, to be ∼0.32 × 10 −13 cm 2 and ∼1.01 nm, respectively, using vibrational modes of C 70 . From AFM study it is clear that the film irradiated at a fluence of 3 × 10 12 ions cm −2 shows maximum roughness. Contact angle measurements have been performed to know about hydrophilic or hydrophobic nature of fullerene C 70 thin films.

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Synthesis and characterizations of Au-C60 nanocomposite

Singhal

Sharma

Vishnoi

et al. 2017

Journal of Alloys and Compounds

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Nano tracks in fullerene film by dense electronic excitations

Abstract: In the present work, we investigate the formation of nano tracks by cluster and mono-atomic ion beams in the fullerene (C 60

Cited by 7 publications

References 40 publications

C60 ions of 1 MeV are slow but elongate nanoparticles like swift heavy ions of hundreds MeV

C60 ions of 1 MeV are slow but elongate nanoparticles like swift heavy ions of hundreds MeV

Surface and structural studies of fullerene C₇₀under ion irradiation

Synthesis and characterizations of Au-C60 nanocomposite

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Nano tracks in fullerene film by dense electronic excitations

Abstract: In the present work, we investigate the formation of nano tracks by cluster and mono-atomic ion beams in the fullerene (C 60

Cited by 7 publications

References 40 publications

C60 ions of 1 MeV are slow but elongate nanoparticles like swift heavy ions of hundreds MeV

C60 ions of 1 MeV are slow but elongate nanoparticles like swift heavy ions of hundreds MeV

Surface and structural studies of fullerene C70under ion irradiation

Synthesis and characterizations of Au-C60 nanocomposite

Contact Info

Product

Resources

About

Surface and structural studies of fullerene C₇₀under ion irradiation