A1 Journal article (refereed)
Gentle tension stabilizes atomically thin metallenes (2024)
Abidi, K. R., & Koskinen, P. (2024). Gentle tension stabilizes atomically thin metallenes. Nanoscale, Early online. https://doi.org/10.1039/d4nr03266g
JYU authors or editors
Publication details
All authors or editors: Abidi, Kameyab Raza; Koskinen, Pekka
Journal or series: Nanoscale
ISSN: 2040-3364
eISSN: 2040-3372
Publication year: 2024
Publication date: 01/10/2024
Volume: Early online
Publisher: Royal Society of Chemistry
Publication country: United Kingdom
Publication language: English
DOI: https://doi.org/10.1039/d4nr03266g
Publication open access: Openly available
Publication channel open access: Partially open access channel
Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/97497
Additional information: Communication
Abstract
Metallenes are atomically thin two-dimensional (2D) materials lacking a layered structure in the bulk form. They can be stabilized by nanoscale constrictions like pores in 2D covalent templates, but the isotropic metallic bonding makes stabilization difficult. A few metallenes have been stabilized but comparison with theory predictions has not always been clear. Here, we use density-functional theory calculations to explore the energetics and dynamic stabilities of 45 metallenes at six lattices (honeycomb, square, hexagonal, and their buckled counterparts) and varying atomic densities. We found that of the 270 different crystalline lattices, 128 were dynamically stable at sporadic densities, mostly under tensile strain. At the energy minima, lattices were often dynamically unstable against amorphization and the breaking down of metallene planarity. Consequently, the results imply that crystalline metallenes should be seen through a novel paradigm: they should be considered not as membranes with fixed structures and lattice constants but as yielding membranes that can be stabilized better under tensile strain and low atomic density. Following this paradigm, we rank the most promising metallenes for 2D stability and hope that the paradigm will help develop new strategies to synthesize larger and more stable metallene samples for plasmonic, optical, and catalytic applications.
Keywords: metals; alloys; two-dimensionality; nanomaterials
Contributing organizations
Related projects
- Towards sustainable metal economy: designing interfaces to stabilize two-dimensional metals
- Koskinen, Pekka
- Jane and Aatos Erkko Foundation
Ministry reporting: Yes
VIRTA submission year: 2024
Preliminary JUFO rating: 3
- Nanoscience Center (Department of Physics PHYS, JYFL) (Faculty of Mathematics and Science) (Department of Chemistry CHEM) (Department of Biological and Environmental Science BIOENV) NSC
- Accelerator and Subatomic Physics (University of Jyväskylä JYU)
- Teacher education research (teaching, learning, teacher, learning paths, education) (University of Jyväskylä JYU) JYU.Edu; Formerly JYU.Ope