Self-healing kinetics in monolayer graphene following very low energy ion irradiation

Vinchon, P.; Hamaguchi, S.; Roorda, S. et al.

Carbon, 2025, 233, 119852

Number of Access:255（2025-08-28 17:12 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/100209

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Title
Self-healing kinetics in monolayer graphene following very low energy ion irradiation
Creator
ORCID
0000-0002-2604-4752 0000-0002-2604-4752
CreatorName
Vinchon, P.
NRID
1000060301826 1000060301826
ORCID
0000-0001-6580-8797 0000-0001-6580-8797
researchmap permalink
satoshi_hamaguchi satoshi_hamaguchi
Scopus Author ID
55220082400 55220082400
CreatorName
Hamaguchi, S.
CreatorName
Roorda, S.
CreatorName
Schiettekatte, F.
CreatorName
Stafford, L.
Description
Vinchon P., Hamaguchi S., Roorda S., et al. Self-healing kinetics in monolayer graphene following very low energy ion irradiation. Carbon 233, 119852 (2025); https://doi.org/10.1016/j.carbon.2024.119852.
Abstract
Monolayer graphene subjected to 13 and 90 eV Ar ion irradiation was probed by in-situ Raman spectroscopy. At 90 eV ion irradiation, a simple damage accumulation is seen. However, at 13 eV, immediately after damage formation, significant graphene self-healing is observed in real time. We argue that energy deposition through very-low-energy ion collisions can create vacancies and carbon adatoms which can diffuse easily on the surface and recombine afterward. The self-healing kinetics exhibit a fast (∼10 s) and a slow regime (∼30 min), which cannot result only from adatom-vacancy recombination. Based on a defect kinetic model, self-healing efficiency is revealed to be limited by dimer formation. Yet, the interplay between Stone-Wales defects and adatoms enables progressive release of the latter, and subsequent graphene self-healing on a longer time scale.
Publisher
Elsevier Ltd
Source Title
Carbon
Volume (Issue)
233
Page
119852
Date of Issued
2025-02-01
Language
English
Handle URL
https://hdl.handle.net/11094/100209
PISSN
00086223
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.1016/j.carbon.2024.119852
Access Rights
open access
CopyRight
This article is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
oaire:version
Version of Record
Category
学術雑誌論文 Journal Article