Tailoring the Epitaxial Growth of Oriented Te Nanoribbon Arrays
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As an elemental semiconductor, tellurium (Te) has been famous for its high hole-mobility, excellent ambient stability and topological states. Here, we realize the controllable synthesis of horizontal Te nanoribbon arrays (TRAs) with an angular interval of 60°on mica substrates by physical vapor deposition strategy. The growth of Te nanoribbons (TRs) is driven by two factors, where the intrinsic quasi-one-dimensional spiral chain structure promotes the elongation of their length; the epitaxy relationship between [110] direction of Te and [110] direction of mica facilitates the oriented growth and the expansion of their width. The bending of TRs which have not been reported is induced by grain boundary. Field-effect transistors based on TRs demonstrate high mobility and on/off ratio corresponding to 397 cm V s and 1.5×10, respectively. These phenomena supply an opportunity to deep insight into the vapor-transport synthesis of low-dimensional Te and explore its underlying application in monolithic integration.
Tellurium and Nano-Tellurium: Medicine or Poison?.
Sari D, Ferroudj A, Semsey D, El-Ramady H, Brevik E, Prokisch J Nanomaterials (Basel). 2024; 14(8).
PMID: 38668165 PMC: 11053935. DOI: 10.3390/nano14080670.