Energy Retention in Thin Graphite Targets after Energetic Ion Impact

Iveković, Damjan; Žugec, Petar; Karlušić, Marko (2021) Energy Retention in Thin Graphite Targets after Energetic Ion Impact. Materials, 14 (21). ISSN 1996-1944

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Abstract

High energy ion irradiation is an important tool for nanoscale modification of materials. In the case of thin targets and 2D materials, which these energetic ions can pierce through, nanoscale modifications such as production of nanopores can open up pathways for new applications. However, materials modifications can be hindered because of subsequent energy release via electron emission. In this work, we follow energy dissipation after the impact of an energetic ion in thin graphite target using Geant4 code. Presented results show that significant amount of energy can be released from the target. Especially for thin targets and highest ion energies, almost 40% of deposited energy has been released. Therefore, retention of deposited energy can be significantly altered and this can profoundly affect ion track formation in thin targets. This finding could also have broader implications for radiation hardness of other nanomaterials such as nanowires and nanoparticles.

Item Type:	Article
Uncontrolled Keywords:	graphite ; ion irradiation ; swift heavy ion ; radiation hardness ; ion track ; Geant4
Subjects:	NATURAL SCIENCES > Physics
Divisions:	Division of Materials Physics
Projects:	Project title Project leader Project code Project type Dinamika defekta u nanomaterijalima: istraživanje putem eksperimenata s ionskim tragovima Karlušić, Marko IP-2018-01-2786 HRZZ
Depositing User:	Sofija Konjević
Date Deposited:	12 Nov 2021 15:07
URI:	http://fulir.irb.hr/id/eprint/6676
DOI:	10.3390/ma14216289

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