New Mo6Te6 Sub‐Nanometer‐Diameter Nanowire Phase from 2H‐MoTe2 |
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| Authors: | Hui Zhu Qingxiao Wang Chenxi Zhang Rafik Addou Kyeongjae Cho Robert M. Wallace Moon J. Kim |
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| Affiliation: | Department of Materials Science and Engineering, The University of Texas at Dallas, Richardson, TX, USA |
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| Abstract: | A novel phase transition, from multilayered 2H‐MoTe2 to a parallel bundle of sub‐nanometer‐diameter metallic Mo6Te6 nanowires (NWs) driven by catalyzer‐free thermal‐activation (400–500 °C) under vacuum, is demonstrated. The NWs form along the 〈11–20〉 2H‐MoTe2 crystallographic directions with lengths in the micrometer range. The metallic NWs can act as an efficient hole injection layer on top of 2H‐MoTe2 due to favorable band‐alignment. In particular, an atomically sharp MoTe2/Mo6Te6 interface 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. |
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| Keywords: | annealing nanowires molybdenum ditelluride phase transitions |
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