Liquid Salt Transport Growth of Single Crystals of the Layered Dichalcogenides MoS2 and WS2

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

doi:10.1021/acs.cgd.9b00785

Liquid Salt Transport Growth of Single Crystals of the Layered Dichalcogenides MoS₂ and WS₂

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

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

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 presented. The crystals are structurally characterized by single-crystal X-ray diffraction, which reveals that the 2H-MoS₂ crystals contain a very small percentage (about 3%) of 3R intergrowths and that the 2H-WS₂ crystals display less than 1% of 3R intergrowths. Characterization of the crystals by scanning electron microscopy is presented as are photoluminescence spectra of exfoliated monolayers that show that MoS₂ crystals grown by this method are superior in quality to commercially available MoS₂ crystals and equivalent to the current state of the art.

Original language	English (US)
Pages (from-to)	5762-5767
Number of pages	6
Journal	Crystal Growth and Design
Volume	19
Issue number	10
DOIs	https://doi.org/10.1021/acs.cgd.9b00785
State	Published - Oct 2 2019

All Science Journal Classification (ASJC) codes

General Chemistry
General Materials Science
Condensed Matter Physics

Access to Document

10.1021/acs.cgd.9b00785

Cite this

@article{7a39b56acbf349529415fbf654a58f29,

title = "Liquid Salt Transport Growth of Single Crystals of the Layered Dichalcogenides MoS2 and WS2 ",

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 presented. The crystals are structurally characterized by single-crystal X-ray diffraction, which reveals that the 2H-MoS2 crystals contain a very small percentage (about 3%) of 3R intergrowths and that the 2H-WS2 crystals display less than 1% of 3R intergrowths. Characterization of the crystals by scanning electron microscopy is presented as are photoluminescence spectra of exfoliated monolayers that show that MoS2 crystals grown by this method are superior in quality to commercially available MoS2 crystals and equivalent to the current state of the art.",

author = "Cevallos, {F. Alex} and Shu Guo and Hoseok Heo and Giovanni Scuri and You Zhou and Jiho Sung and Takashi Taniguchi and Kenji Watanabe and Philip Kim and Hongkun Park and Cava, {Robert J.}",

note = "Publisher Copyright: Copyright {\textcopyright} 2019 American Chemical Society.",

year = "2019",

month = oct,

day = "2",

doi = "10.1021/acs.cgd.9b00785",

language = "English (US)",

volume = "19",

pages = "5762--5767",

journal = "Crystal Growth and Design",

issn = "1528-7483",

publisher = "American Chemical Society",

number = "10",

}

TY - JOUR

T1 - Liquid Salt Transport Growth of Single Crystals of the Layered Dichalcogenides MoS2 and WS2

AU - Cevallos, F. Alex

AU - Guo, Shu

AU - Heo, Hoseok

AU - Scuri, Giovanni

AU - Zhou, You

AU - Sung, Jiho

AU - Taniguchi, Takashi

AU - Watanabe, Kenji

AU - Kim, Philip

AU - Park, Hongkun

AU - Cava, Robert J.

PY - 2019/10/2

Y1 - 2019/10/2

N2 - 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 presented. The crystals are structurally characterized by single-crystal X-ray diffraction, which reveals that the 2H-MoS2 crystals contain a very small percentage (about 3%) of 3R intergrowths and that the 2H-WS2 crystals display less than 1% of 3R intergrowths. Characterization of the crystals by scanning electron microscopy is presented as are photoluminescence spectra of exfoliated monolayers that show that MoS2 crystals grown by this method are superior in quality to commercially available MoS2 crystals and equivalent to the current state of the art.

AB - 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 presented. The crystals are structurally characterized by single-crystal X-ray diffraction, which reveals that the 2H-MoS2 crystals contain a very small percentage (about 3%) of 3R intergrowths and that the 2H-WS2 crystals display less than 1% of 3R intergrowths. Characterization of the crystals by scanning electron microscopy is presented as are photoluminescence spectra of exfoliated monolayers that show that MoS2 crystals grown by this method are superior in quality to commercially available MoS2 crystals and equivalent to the current state of the art.

UR - http://www.scopus.com/inward/record.url?scp=85073199806&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85073199806&partnerID=8YFLogxK

U2 - 10.1021/acs.cgd.9b00785

DO - 10.1021/acs.cgd.9b00785

M3 - Article

AN - SCOPUS:85073199806

SN - 1528-7483

VL - 19

SP - 5762

EP - 5767

JO - Crystal Growth and Design

JF - Crystal Growth and Design

IS - 10

ER -

Liquid Salt Transport Growth of Single Crystals of the Layered Dichalcogenides MoS₂ and WS₂

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this