TY - JOUR

T1 - 2D diamond structures in multilayer graphene: Simulation and experimental observation

AU - Tomilin, Lev F.

AU - Erohin, Sergey V.

AU - Nebogatikova, Nadezhda A.

AU - Antonova, Irina V.

AU - Gutakovskii, Anton K.

AU - Volodin, Vladimir A.

AU - Korneeva, Ekaterina A.

AU - Sorokin, Pavel B.

N1 - The study was funded by Russian Science Foundation according to the research project No 21-12-00399. The laboratory of Digital Material Science was created with the support by the Ministry of Science and Higher Education of the Russian Federation in the framework of Increase Competitiveness Program of NUST “MISIS” (No. K6-2022-041).

PY - 2024/2/20

Y1 - 2024/2/20

N2 - The presented paper investigates the formation of nanodiamond structures within multilayer graphene through irradiation with fast heavy ions. The study demonstrates that Xe26+ ions with energies ranging from 26 to 167 MeV can create diamond regions in graphene with lateral sizes ranging from 5 to 20 nm. The density of nanodiamonds formed in the few-layer graphene films is estimated to be approximately (5–30)% of the ion fluence. We show that the final structure of the diamond structures is influenced by factors such as surface orientation, number of graphene layers, and lateral size. Atomistic simulations predicted unusual mechanical properties of the formed 2D composite: its Young's modulus obtained by indentation can significantly exceed the stiffness of the original graphene film.

AB - The presented paper investigates the formation of nanodiamond structures within multilayer graphene through irradiation with fast heavy ions. The study demonstrates that Xe26+ ions with energies ranging from 26 to 167 MeV can create diamond regions in graphene with lateral sizes ranging from 5 to 20 nm. The density of nanodiamonds formed in the few-layer graphene films is estimated to be approximately (5–30)% of the ion fluence. We show that the final structure of the diamond structures is influenced by factors such as surface orientation, number of graphene layers, and lateral size. Atomistic simulations predicted unusual mechanical properties of the formed 2D composite: its Young's modulus obtained by indentation can significantly exceed the stiffness of the original graphene film.

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85184042098&origin=inward&txGid=8844efc378485ab5f362d889ff4dd54b

UR - https://www.mendeley.com/catalogue/ba82b75e-75ff-3358-bff5-558e6142db67/

U2 - 10.1016/j.carbon.2024.118832

DO - 10.1016/j.carbon.2024.118832

M3 - Article

VL - 220

JO - Carbon

JF - Carbon

SN - 0008-6223

M1 - 118832

ER -