Structural, Electronic, and Transport Properties of Silicane Nanoribbons

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Structural, Electronic, and Transport Properties of Silicane Nanoribbons

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Title: Structural, Electronic, and Transport Properties of Silicane Nanoribbons
Author(s):
Kim, Jiseok;
Fischetti, Massimo V.;
Aboud, S.
Format: text
Item Type: article
Keywords: Silicane nanoribbons
Abstract: Silicane ribbons do not suffer from aromatic dependence of the band gap making them a more promising candidate for near-term nanoelectronic application compared to armchair graphene nanoribbons. The structural, electronic, and transport properties of free-standing sp3-hybridized armchair- and zigzag-edge silicane nanoribbons have been investigated using ab initio and nonlocal empirical pseudopotential calculations. Under ambient conditions, two-dimensional silicane sheets will spontaneously break into stable one-dimensional ribbons similar to density functional theory studies of graphene ribbons. The calculated low-field electron mobility and ballistic conductance show a strong edge dependence, due to differences in the effective mass and momentum relaxation rates along the two transport directions. The mobility in zigzag-edge ribbons is found to be approximately twenty times higher than in armchair-edge ribbons. © 2012 American Physical Society.
ISSN: 1098-0121
Persistent Link: http://dx.doi.org/10.1103/PhysRevB.86.205323
http://hdl.handle.net/10735.1/2902
Terms of Use: © 2012 American Physical Society

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