Breakdown of Universal Scaling for Nanometer-Sized Bubbles in Graphene

Autor(en)

Renan Villarreal, Pin-Cheng Lin, Fahim Faraji, Nasim Hassani, Harsh Bana, Zviadi Zarkua, Maya N. Nair, Hung-Chieh Tsai, Manuel Auge, Felix Junge, Hans C. Hofsaess, Stefan De Gendt, Steven De Feyter, Steven Brems, E. Harriet Ahlgren, Erik C. Neyts, Lucian Covaci, Francois M. Peeters, Mehdi Neek-Amal, Lino M. C. Pereira

Abstrakt

We report the formation of nanobubbles on graphene with a radius of the order of 1 nm, using ultralow energy implantation of noble gas ions (He, Ne, Ar) into graphene grown on a Pt(111) surface. We show that the universal scaling of the aspect ratio, which has previously been established for larger bubbles, breaks down when the bubble radius approaches 1 nm, resulting in much larger aspect ratios. Moreover, we observe that the bubble stability and aspect ratio depend on the substrate onto which the graphene is grown (bubbles are stable for Pt but not for Cu) and trapped element. We interpret these dependencies in terms of the atomic compressibility of the noble gas as well as of the adhesion energies between graphene, the substrate, and trapped atoms.

Organisation(en)

Physik Nanostrukturierter Materialien

Externe Organisation(en)

Katholieke Universiteit Leuven, University of Antwerp, Shahid Rajaee Teacher Training University (SRTTU), City University of New York, Interuniversity Microelectronics Centre, Georg-August-Universität Göttingen

Journal

Nano Letters

Band

21

Seiten

8103-8110

Anzahl der Seiten

8

ISSN

1530-6984

DOI

https://doi.org/10.1021/acs.nanolett.1c02470

Publikationsdatum

10-2021

Peer-reviewed

Ja

ÖFOS 2012

103018 Materialphysik

Schlagwörter

ASJC Scopus Sachgebiete

Condensed Matter Physics, Mechanical Engineering, Bioengineering, Allgemeine Chemie, Allgemeine Materialwissenschaften

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/1719f3d8-a3a8-44e0-a12f-761f4a59e67e