The new single element two-dimensional materials in the post-graphene era, such as phosphorene, silicene, become emerging alternatives for next generation due to remarkable physical property. However, the...

In the past decade, 2D materials such as graphitic carbon nitride, transition metal dichalcogenides, layered oxides and hydroxides, hexagonal boron nitride MXenes have garnered a great attention with discovery of graphene. Very recently, novel analogous to graphene phosphorene, antimonene, silicene, siloxene, germanene etc., were discovered are emerging strong competitors existing materials. Th...

We propose a DNA sequencing scheme based on silicene nanopores. Using first principles theory, we compute the electrical properties of such pores in the absence and presence of nucleobases. Within a two-terminal geometry, we analyze the current-voltage relation in the presence of nucleobases with various orientations. We demonstrate that when nucleobases pass through a pore, even after sampling...

Thermoelectric properties of silicene nanoribbons doped with magnetic impurity atoms are investigated theoretically for both antiparallel and parallel orientations of the edge magnetic moments. Spin density distribution and transport parameters have been determined by ab-initio numerical methods based on the density functional theory. Doping with magnetic atoms considerably modi es the spin den...

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D eji Akinwande, professor of electrical and computer engineering at the University of Texas, Austin, develops electronic devices that rely on atom-thin sheets known as two-dimensional (2-D) materials. While the carbon material graphene has received the lion’s share of attention in this field, analogous materials such as silicene, phosphorene, and molybdenum disulfide are increasingly being tap...

Abstract Dumbbell-like structures are recently found to be energetically favored in group IV two-dimensional (2D) materials, exhibiting rich physics and many interesting properties. In this paper, using first-principles calculations, we have investigated the oxidized form of hexagonal honeycomb (ODB-h) zigzag dumbbell silicene (ODB-z). We confirm that both oxidization processes favorable, their...