2019年4月16日 · In this work, we report experimental observation of room-temperature ferroelectricity in an unexploited phase of MoTe 2 down to the monolayer limit. Physical mechanism behind the phenomenon is...

2022年9月1日 · Here, we evaluate in a systematic manner the signature of exfoliated free-standing mono- and few-layer MoS 2 and MoTe 2 in TEM experiments such as high-resolution transmission electron microscopy, electron energy-loss spectroscopy, and 3D electron diffraction.

2021年2月19日 · The authors used laser-induced phase patterning, a polymorph engineering, to fabricate an ohmic heterophase homojunction between semiconducting hexagonal (2H) and metallic monoclinic (1T') molybdenum ditelluride (MoTe2) that is stable up to 300° and increases the carrier mobility of the MoTe2 transistor by a factor of ∼50, while retaining a ...

2015年5月4日 · Here, we report a reversible structural phase transition between the hexagonal and stable monoclinic (distorted octahedral or 1T′) phases in bulk single-crystalline MoTe 2. Furthermore, an...

2018年2月5日 · We first show that MoTe2 monolayers without protection indeed quickly degrade during scanning TEM (STEM) imaging, and discuss the observed atomic-level dynamics, including a transformation from the 1H phase into 1T', 3-fold rotationally symmetric defects, and the migration of line defects between two 1H grains with a 60° misorientation.

2016年12月19日 · Chemical vapor deposition allows the preparation of few-layer films of MoTe 2 in three distinct structural phases depending on the growth quench temperature: 2H, 1T′, and 1T. We present experimental and computed Raman spectra for each of the phases and utilize transport measurements to explore the properties of the 1T MoTe 2 phase.

2022年1月1日 · Transition metal dichalcogenides with well-developed two-dimensional layers and high structural stability provide superior Li + storage property in lithium-ion batteries (LIBs). For this study, the MoTe 2 polycrystalline powder sample is prepared using a facile solid-state route.

在这里，我们以系统的方式评估剥离的独立单层和少层 MoS 2和 MoTe 2在 TEM 实验中的特征，例如高分辨率透射电子显微镜、电子能量损失光谱和 3D 电子衍射。

2020年7月24日 · Minor structural changes in transition metal dichalcogenides can have dramatic effects on their electronic properties. This makes the quest for key parameters that enable a selective choice between...

2024年1月15日 · For the analysis of the temperature-dependent transformations in freestanding 2D hexagonal MoTe 2, aberration-corrected (AC) high-resolution (HR) transmission electron microscopy (TEM) is an indispensable technique, offering the possibility to characterize transformations at the atomic level in real-time.