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Beryllene, the lightest Xene
- Source :
- npj 2D Materials and Applications, Vol 7, Iss 1, Pp 1-13 (2023)
- Publication Year :
- 2023
- Publisher :
- Nature Portfolio, 2023.
-
Abstract
- Abstract After the discovery of sp2-hybridized graphene and even lighter borophene, the scientific quest for the thinnest metallic sheets prompts the discovery of beryllene. As beryllium lacks p-electrons, the hybridization and structural evolution of beryllene in determining electronic/excitonic behaviors are scientifically interesting. Herein, we report the experimental realization of freestanding flat beryllene sheets with a lateral dimension of ~0.2–4 μm via sonochemical exfoliation. High-resolution transmission electron microscopy establishes the existence of hexagonal, square and stripe crystallographic phases. While characteristic Raman fingerprints ~451 and ~614 cm−1, and experimentally observed electrically metallic nature of beryllene (vindicated by density-functional-theory band structure calculations) establish beryllene synthesis. Room temperature magnetism in Be-G and Be-CNT hybrids (established by Raman mapping and magnetic force microscopic imaging) is an interesting finding. Beryllene was explored as a surface-enhanced Raman spectroscopy (SERS) anchor in molecular sensing, oxidation-resistant, and fire-resistant laminates. It is believed that the discovery of beryllene will lead to novel functionalities and emerging applications.
Details
- Language :
- English
- ISSN :
- 23977132
- Volume :
- 7
- Issue :
- 1
- Database :
- Directory of Open Access Journals
- Journal :
- npj 2D Materials and Applications
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.7af615bab0fe4529adfd3d1f9a1cfb30
- Document Type :
- article
- Full Text :
- https://doi.org/10.1038/s41699-023-00415-y