Journal
JOURNAL OF PHYSICAL CHEMISTRY C
Volume 117, Issue 32, Pages 16719-16724Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp405642g
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Funding
- EU [2D-NANOLATTICES]
- European Commission [270749]
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By combining experimental techniques with ab initio density functional theory calculations, we describe the Si/Ag(111) 2D systems in terms of a sp(2)-sp(3) form of silicon characterized by a vertically distorted honeycomb lattice provided by the constraint imposed by the substrate. The Raman spectrum reflects the multihybridized nature of the 2D Si nanosheets (NSs) resulting from a buckling-induced distortion of a purely sp(2) hybridized structure. We show that vibrational and electronic properties of 2D Si-NSs are tightly linked to the buckling arrangement.
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