Novel micro-rings of molybdenum disulfide (MoS2)

Chao Fan; Tao Li; Zhongming Wei; Nengjie Huo; Fangyuan Lu; Juehan Yang; Renxiong Li; Shengxue Yang; Bo Li; Wenping Hu; Jingbo Li

doi:10.1039/C4NR05111D

Novel micro-rings of molybdenum disulfide (MoS₂)†

Chao Fan,^a Tao Li,^b Zhongming Wei,*^b Nengjie Huo,^a Fangyuan Lu,^a Juehan Yang,^a Renxiong Li,^a Shengxue Yang,^a Bo Li,^a Wenping Hu*^c and Jingbo Li*^a

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* Corresponding authors

^a State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, P. R. China
E-mail: jbli@semi.ac.cn

^b Nano-Science Center & Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark
E-mail: zmwei@semi.ac.cn

^c Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
E-mail: huwp@iccas.ac.cn

Abstract

Recently, molybdenum disulfide (MoS₂) has become a popular material due to its unique electrical and chemical properties, and its use as a potential substitute for graphene. Herein, we report a new two-step method by utilizing thermal evaporation–sulfurization to synthesize MoS₂ which possesses an innovative micro-ring structure. The average statistical values of the height, width and external diameter were 69 nm, 0.3 μm and 5.0 μm, respectively. Then the mechanism for the growth of such MoS₂ micro-rings was proposed. A device based on the MoS₂ micro-ring was prepared by electron beam lithography, and its electrical transport properties were determined at different temperatures.

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Novel micro-rings of molybdenum disulfide (MoS₂)†

Abstract

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Novel micro-rings of molybdenum disulfide (MoS₂)

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