title: New Mo6Te6Sub-Nanometer-Diameter Nanowire Phase from 2H-MoTe2.
abstract: A novel phase transition, from multilayered 2H-MoTe2to a parallel bundle of sub-nanometer-diameter metallic Mo6Te6nanowires (NWs) driven by catalyzer-free thermal-activation (400-500 °C) under vacuum, is demonstrated. The NWs form along the 〈11-20〉 2H-MoTe2crystallographic directions with lengths in the micrometer range. The metallic NWs can act as an efficient hole injection layer on top of 2H-MoTe2due to favorable band-alignment. In particular, an atomically sharp MoTe2/Mo6Te6interface and van der Waals gap with the 2H layers are preserved. The work highlights an alternative pathway for forming a new transition metal dichalcogenide phase and will enable future exploration of its intrinsic transportation properties.
authors.affiliation: Department of Materials Science and Engineering, The University of Texas at Dallas, 800 West Campbell Road, Richardson, TX, 75080, USA.
authors.forename: Hui
authors.initials: H
authors.lastname: Zhu
authors.affiliation: Department of Materials Science and Engineering, The University of Texas at Dallas, 800 West Campbell Road, Richardson, TX, 75080, USA.
authors.forename: Qingxiao
authors.initials: Q
authors.lastname: Wang
authors.affiliation: Department of Materials Science and Engineering, The University of Texas at Dallas, 800 West Campbell Road, Richardson, TX, 75080, USA.
authors.forename: Chenxi
authors.initials: C
authors.lastname: Zhang
authors.affiliation: Department of Materials Science and Engineering, The University of Texas at Dallas, 800 West Campbell Road, Richardson, TX, 75080, USA.
authors.forename: Rafik
authors.initials: R
authors.lastname: Addou
authors.affiliation: Department of Materials Science and Engineering, The University of Texas at Dallas, 800 West Campbell Road, Richardson, TX, 75080, USA.
authors.forename: Kyeongjae
authors.initials: K
authors.lastname: Cho
authors.affiliation: Department of Materials Science and Engineering, The University of Texas at Dallas, 800 West Campbell Road, Richardson, TX, 75080, USA.
authors.forename: Robert M
authors.initials: RM
authors.lastname: Wallace
authors.affiliation: Department of Materials Science and Engineering, The University of Texas at Dallas, 800 West Campbell Road, Richardson, TX, 75080, USA.
authors.forename: Moon J
authors.initials: MJ
authors.lastname: Kim
keywords: annealing; molybdenum ditelluride; nanowires; phase transitions