title: Self-standing nanoribbons of antimony selenide and antimony sulfide with well-defined size and band gap.
abstract: Sub-10 nm semiconducting nanostructures are crucial for the realization of nanoscale devices. Fabrication of nanostructures at this scale with homogeneous properties is challenging. Using ab initio calculations, we show that self-standing ribbons of antimony selenide and antimony sulfide of width 1.1 nm exhibit well-defined bandgaps of 1.66 and 2.16 eV, respectively. Molecular dynamics studies show that these ribbons are stable at 500 K. The one-dimensional (1D) heterostructure of these nanoribbons (Sb(2)Se(3)/Sb(2)S(3)) along the [001] direction shows a straddling type behavior.
authors.affiliation: Department of Physics, University of Puerto Rico, San Juan, PR 00936, USA.
authors.forename: Rajasekarakumar
authors.initials: R
authors.lastname: Vadapoo
authors.forename: Sridevi
authors.initials: S
authors.lastname: Krishnan
authors.forename: Hulusi
authors.initials: H
authors.lastname: Yilmaz
authors.forename: Carlos
authors.initials: C
authors.lastname: Marin