Large-Area and High-Quality 2D Transition Metal Telluride.

Zhou, Jiadong; Liu, Fucai; Lin, Junhao; Huang, Xiangwei; Xia, Juan; Zhang, Bowei; Zeng, Qingsheng; Wang, Hong et al. · Adv Mater · 2017

basic_science · Level V

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Abstract

Large-area and high-quality 2D transition metal tellurides are synthesized by the chemical vapor deposition method. The as-grown WTe<sub>2</sub> maintains two different stacking sequences in the bilayer, where the atomic structure of the stacking boundary is revealed by scanning transmission electron microscopy. The low-temperature transport measurements reveal a novel semimetal-to-insulator transition in WTe<sub>2</sub> layers and an enhanced superconductivity in few-layer MoTe<sub>2</sub> .