DataVXAdvanced MaterialsPaper
journal article·2019-05

In‐Plane Anisotropic Properties of 1T′‐MoS2 Layers

Gwang‐Hyeon Nam, Qiyuan He, Xingzhi Wang, Yifu Yu, Junze Chen, Kang Zhang, Zhenzhong Yang, Dianyi Hu, Zhuangchai Lai, Bing Li, Qihua Xiong, Qing Zhang, Lin Gu, Hua Zhang

Advanced Materials· Volume 31· Issue 21
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Source abstract

Abstract

Abstract Crystal phases play a key role in determining the physicochemical properties of a material. To date, many phases of transition metal dichalcogenides have been discovered, such as octahedral (1T), distorted octahedral (1T′), and trigonal prismatic (2H) phases. Among these, the 1T′ phase offers unique properties and advantages in various applications. Moreover, the 1T′ phase consists of unique zigzag chains of the transition metals, giving rise to interesting in‐plane anisotropic properties. Herein, the in‐plane optical and electrical anisotropies of metastable 1T′‐MoS2 layers are investigated by the angle‐resolved Raman spectroscopy and electrical measurements, respectively. The deconvolution of J1 and J2 peaks in the angle‐resolved Raman spectra is a key characteristic of high‐quality 1T′‐MoS2 crystal. Moreover, it is found that its electrocatalytic performance may be affected by the crystal orientation of anisotropic material due to the anisotropic charge transport.
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Research context

Catalysis & surfaces

OpenAlex topics: 2D Materials and Applications · MXene and MAX Phase Materials · Perovskite Materials and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Center for Programmable Materials School of Materials Science and Engineering Nanyang Technological University 50 Nanyang Avenue Singapore 639798 Singapore

Division of Physics and Applied Physics School of Physical and Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore

Department of Chemistry School of Science and Tianjin Key Laboratory of Molecular Optoelectronic Science Tianjin University and Collaborative Innovation Center of Chemical Science and Engineering Tianjin 300072 China

School of Electrical and Electronic Engineering Nanyang Technological University Singapore 639798 Singapore

Beijing National Laboratory for Condensed Matter Physics Institute of Physics, Chinese Academy of Sciences Beijing 100190 China

Institute of Materials Research and Engineering A*STAR (Agency for Science, Technology and Research) 2 Fusionopolis Way, Innovis #08‐03 Singapore 138634 Singapore

Department of Chemistry City University of Hong Kong Kowloon Hong Kong China hua.zhang@cityu.edu.hk

Funding

Ministry of the Environment · National Taiwan University

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