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Condensed Matter > Materials Science

arXiv:1909.08198 (cond-mat)
[Submitted on 18 Sep 2019]

Title:Chemically driven isothermal closed space vapor transport of MoO$_2$: thin films, flakes and in-situ tellurization

Authors:O. de Melo, L. García-Pelayo, Y. González, O. Concepción, M. Manso-Silván, R. López-Nebreda, J. L. Pau, J. C. González, A. Climent-Font, V. Torres-Costa
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Abstract:A novel procedure, based in a closed space vapor transport (CSVT) configuration, has been devised to grow films or flakes of pure MoO2 in a reductive atmosphere, at relatively low temperature and using MoO3 as the source. In contrast with conventional CSVT technique, in the proposed method a temperature gradient is not required for the growth to take place, which occurs through an intermediate volatile transport species that is produced in the complex reduction reaction of MoO3. An added value of this simple method is the possibility of transforming the MoO2 into MoTe2, one of the most interesting members of the transition metal dichalcogenide family. This is achieved in a sequential process that includes the growth of Mo oxide and its (in-situ) tellurization in two consecutive steps.
Subjects: Materials Science (cond-mat.mtrl-sci)
Cite as: arXiv:1909.08198 [cond-mat.mtrl-sci]
  (or arXiv:1909.08198v1 [cond-mat.mtrl-sci] for this version)
  https://doi.org/10.48550/arXiv.1909.08198
Journal reference: J. Mater. Chem. C, 2018, 6, 6799
Related DOI: https://doi.org/10.1039/c8tc01685b

Submission history

From: Osvaldo De Melo [view email]
[v1] Wed, 18 Sep 2019 03:39:19 UTC (764 KB)
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