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arXiv · 1906.06769

Single crystals of the layered dichalcogenides MoS2 and WS2 grown by liquid phase transport

F. Alex Cevallos·Shu Guo·Hoseok Heo·Giovanni Scuri·You Zhou·Jiho Sung·Takashi Taniguchi·Kenji Watanabe·Philip Kim·Hongkun Park·Robert J. Cava
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Abstract

The growth of single crystals of MoS2 and WS2 by materials transport through a liquid salt flux made from a low melting mixture of NaCl and CsCl is described. The crystals are characterized by single crystal X-ray diffraction, which reveals that they are 2H-MoS2 with a small percentage (about 3%) of 3R intergrowths. The 2H-WS2 crystals display less than 1% of 3R intergrowths. Photoluminescence spectra of exfoliated monolayers suggest that MoS2 grown by this method has superior crystallinity in comparison to commercially-available MoS2 crystals.

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F. Alex Cevallos, Shu Guo, Hoseok Heo, Giovanni Scuri, You Zhou, Jiho Sung, Takashi Taniguchi, Kenji Watanabe, Philip Kim, Hongkun Park, Robert J. Cava. 2019-06-16. Single crystals of the layered dichalcogenides MoS2 and WS2 grown by liquid phase transport. https://arxiv.org/abs/1906.06769

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