Direct Observation of Molybdenum Disulfide, MoS2, Domains by Using a Liquid Crystalline Texture Method

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• 作者：Dae Woo Kim ; Jong Min Ok ; Woo-Bin Jung ; Jong-Seon Kim ; Seon Joon Kim ; Hyung Ouk Choi ; Yun Ho Kim ; Hee-Tae Jung
• 刊名：Nano Letters
• 出版年：2015
• 出版时间：January 14, 2015
• 年：2015
• 卷：15
• 期：1
• 页码：229-234
• 全文大小：445K
• ISSN：1530-6992

文摘

Because the properties of molybdenum disulfide (MoS₂) are strongly influenced by the sizes and boundaries of its domains, the direct visualization of large-area MoS₂ domains is one of the most important challenges in MoS₂ research. In the current study, we developed a simple and rapid method to observe and determine the boundaries of MoS₂ domains. The technique, which depends on observations of nematic liquid crystal textures on the MoS₂ surface, does not damage the sample and is not limited by domain size. Thus, this approach should significantly aid not only efforts aimed at gaining an understanding of the relationships between grain boundaries and properties of MoS₂ but also those focusing on how domain sizes are controlled during large-area synthesis