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Atomic Arrangements of Graphene-like ZnO

Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Korea
Center for Multidimensional Carbon Materials, Institute for Basic Science (IBS), Ulsan 44919, Korea
School of Materials Science and Engineering, Gyeongsang National University, Jinju 52828, Korea
Author to whom correspondence should be addressed.
Academic Editor: Werner Blau
Nanomaterials 2021, 11(7), 1833;
Received: 21 June 2021 / Revised: 8 July 2021 / Accepted: 13 July 2021 / Published: 14 July 2021
(This article belongs to the Special Issue 2D Nanostructures for Optoelectronic and Green Energy Devices)
ZnO, which can exist in various dimensions such as bulk, thin films, nanorods, and quantum dots, has interesting physical properties depending on its dimensional structures. When a typical bulk wurtzite ZnO structure is thinned to an atomic level, it is converted into a hexagonal ZnO layer such as layered graphene. In this study, we report the atomic arrangement and structural merging behavior of graphene-like ZnO nanosheets transferred onto a monolayer graphene using aberration-corrected TEM. In the region to which an electron beam is continuously irradiated, it is confirmed that there is a directional tendency, which is that small-patched ZnO flakes are not only merging but also forming atomic migration of Zn and O atoms. This study suggests atomic alignments and rearrangements of the graphene-like ZnO, which are not considered in the wurtzite ZnO structure. In addition, this study also presents a new perspective on the atomic behavior when a bulk crystal structure, which is not an original layered structure, is converted into an atomic-thick layered two-dimensional structure. View Full-Text
Keywords: graphene-like ZnO; atomic arrangement; merging; aberration-corrected TEM graphene-like ZnO; atomic arrangement; merging; aberration-corrected TEM
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MDPI and ACS Style

Yoon, J.C.; Lee, Z.; Ryu, G.H. Atomic Arrangements of Graphene-like ZnO. Nanomaterials 2021, 11, 1833.

AMA Style

Yoon JC, Lee Z, Ryu GH. Atomic Arrangements of Graphene-like ZnO. Nanomaterials. 2021; 11(7):1833.

Chicago/Turabian Style

Yoon, Jong Chan, Zonghoon Lee, and Gyeong Hee Ryu. 2021. "Atomic Arrangements of Graphene-like ZnO" Nanomaterials 11, no. 7: 1833.

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