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

ABSTRACT: 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 crystall

SUBMITTER: Amekura H 

PROVIDER: S-EPMC6800440 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature