Hybrid Bismuth Selenide Nanostructures Synthesized by Chemical Vapor Deposition

ORAL

Abstract

The recent demonstration of theoretically predicted topologically ordered states in real bismuth based chemical compounds such as bismuth antimony, bismuth selenide, bismuth telluride etc opened the field of topological insulators (materials exhibiting insulator properties in bulk, but metallic behavior on the surface) for a plethora of possible applications. Topological insulator nanostructures in particular are of great interest due to their large surface to volume ratio. We will report on the CVD synthesis of various hybrid 1D and 2D nanostructures of the bismuth-selenium complex, and their morphological and structural properties (investigated by SEM and TEM imaging coupled with EDAX and XRD spectroscopy). Optical and transport properties will be also presented and related to possible spintronics and no dissipation electronics applications.

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Authors

  • Eugen Panaitescu

    Physics Department, Northeastern University, Northeastern University

  • Fangze Liu

    Physics Department, Northeastern University

  • Swastik Kar

    Northeastern University, Physics Department, Northeastern University, Department of Physics, Northeastern University, Northeastern University, Boston

  • Menon Latika

    Physics Department, Northeastern University, Northeastern University, Northeastern University, Boston, MA 02115