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New Mo6Te6 Sub‐Nanometer‐Diameter Nanowire Phase from 2H‐MoTe2
Advanced Materials ( IF 27.4 ) Pub Date : 2017-03-10 , DOI: 10.1002/adma.201606264
Hui Zhu 1 , Qingxiao Wang 1 , Chenxi Zhang 1 , Rafik Addou 1 , Kyeongjae Cho 1 , Robert M. Wallace 1 , Moon J. Kim 1
Affiliation  

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.

中文翻译:

来自2H-MoTe2的新Mo6Te6亚纳米直径纳米线相

展示了一种新型的相变,该相变是在真空下从无催化剂的热活化(400–500°C)驱动的,从多层2H-MoTe 2到平行束的亚纳米直径金属Mo 6 Te 6纳米线(NW)组成的。 。NW沿<11–20> 2H-MoTe 2晶体学方向形成,长度在微米范围内。由于有利的能带对准,金属NW可以充当2H-MoTe 2顶部的有效空穴注入层。特别是原子上尖锐的MoTe 2 / Mo 6 Te 6保留了2H层的界面和范德华间隙。这项工作突出了形成新的过渡金属二硫化二氢相的替代途径,并将使将来对其内在运输性质的探索成为可能。
更新日期:2017-03-10
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