1D graphene-like silicon systems: silicene nano-ribbons.
Summary of "1D graphene-like silicon systems: silicene nano-ribbons."
Through this review we can follow the various phases that have led to the discovery of the new allotrope form of silicon: silicene. This is a one-atom thick silicon sheet arranged in a honeycomb lattice, similar to graphene. For silicon, which usually is sp(3) hybridized, it represents an unusual and rare structure. First, silicene was theoretically hypothesized and subsequently its structure calculated as a possible candidate for nano-ribbons of Si grown on the anisotropic Ag(110) surface. It was only later, when the physical and chemical properties of this peculiar form of silicon, demonstrating the presence of π and π* bands giving the so-called Dirac cones at the K corners of the Brillouin zone, the sp(2)-like nature of the valence orbitals of the Si-Si bonds and its strong resistance towards oxygen were reported, that the real existence of silicene became recognized in the scientific community. This review is essentially focused on the experimental work performed on 1D isolated silicene nano-ribbons and their 1D dense array grown on Ag(110) surfaces.
Affiliation
Consiglio Nazionale delle Ricerche-ISM, via Fosso del Cavaliere, 00133 Roma, Italy.
Journal Details
This article was published in the following journal.
Name: Journal of physics. Condensed matter : an Institute of Physics journal
ISSN: 1361-648X
Pages: 223001
Links
- PubMed Source: http://www.ncbi.nlm.nih.gov/pubmed/22592268
- DOI: http://dx.doi.org/10.1088/0953-8984/24/22/223001
Medical and Biotech [MESH] Definitions
Silicon
A trace element that constitutes about 27.6% of the earth's crust in the form of SILICON DIOXIDE. It does not occur free in nature. Silicon has the atomic symbol Si, atomic number 14, and atomic weight 28.09.
Silicon Compounds
Inorganic compounds that contain silicon as an integral part of the molecule.
Siloxanes
Silicon polymers that contain alternate silicon and oxygen atoms in linear or cyclic molecular structures.
Silicones
A broad family of synthetic organosiloxane polymers containing a repeating silicon-oxygen backbone with organic side groups attached via carbon-silicon bonds. Depending on their structure, they are classified as liquids, gels, and elastomers. (From Merck Index, 12th ed)
Bionics
The study of systems, particularly electronic systems, which function after the manner of, in a manner characteristic of, or resembling living systems. Also, the science of applying biological techniques and principles to the design of electronic systems.
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