Chemical Vapor Transport Growth and Characterization of WTe2 Crystals

Dimitre Dimitrov; Krastyo Buchkov; Vera Marinova; Velichka Strijkova; Marin Gospodinov

doi:10.3390/IOCN2020-07905

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Chemical Vapor Transport Growth and Characterization of WTe2 Crystals

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¹ Institute of Solid State Physics, Bulgarian Academy of Sciences, Sofia, Bulgaria, Bulgaria
² Institute of Optical Materials and Technologies, Bulgarian Academy of Sciences, Sofia, Bulgaria
³ 1 Institute of Optical Materials and Technologies, Bulgarian Academy of Sciences, Sofia, Bulgaria 2 Department of Electrophysics, National Chiao Tung University, Hsinchu 30010, Taiwan
⁴ Institute of Optical Materials and Technologies, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
⁵ Institute of Solid State Physics, Bulgarian Academy of Sciences, Sofia, Bulgaria

Published: 11 November 2020 by MDPI in 2nd International Online-Conference on Nanomaterials session Synthesis and Characterization of Nanomaterials

https://doi.org/10.3390/IOCN2020-07905

Abstract:

Single crystals of Tungsten Ditelluride WTe2 having a 2D layered structure are grown by chemical vapor transport method using bromine as the transporting agent. The structure and properties of the WTe2 single crystals as well as exfoliated thin film samples were characterized using XRD single crystal and powder X-ray diffraction, EDX, Raman spectroscopy and spectroscopic ellipsometry. The quality of the samples relation to growth conditions is further accessed and possible applications discussed.

Keywords: WTe2 single crystals, 2D layers, synthesis, characterization

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