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dc.contributor.authorWang, BB
dc.contributor.authorZhu, MK
dc.contributor.authorLevchenko, I
dc.contributor.authorZheng, K
dc.contributor.authorGao, B
dc.contributor.authorXu, S
dc.contributor.authorOstrikov, K
dc.date.accessioned2021-02-11T03:27:06Z
dc.date.available2021-02-11T03:27:06Z
dc.date.issued2017
dc.identifier.issn0022-0248
dc.identifier.doi10.1016/j.jcrysgro.2017.05.024
dc.identifier.urihttp://hdl.handle.net/10072/401981
dc.description.abstractThe role of reactive environment and hydrogen specifically in growth and structure of molybdenum selenide (MoSe2) nanomaterials is presently debated, and it is not clear whether hydrogen can promote the growth of MoSe2 sheets and alter their electronic properties. To find efficient, convenient methods for controlling the nucleation, growth and resultant properties of MoSe2 nanomaterials, MoSe2 nanoflakes were synthesized on silicon substrates by hot filament chemical vapor deposition using molybdenum trioxide and selenium powders in pure hydrogen, nitrogen gases and hydrogen-nitrogen mixtures. The structures and composition of synthesized MoSe2 nanoflakes were studied using the advanced characterization instruments including field emission scanning electron microscopy, micro-Raman spectroscopy, X-ray photoelectron spectroscopy, transmission electron microscopy and energy dispersive X-ray spectrometry. The analysis of the growth process indicates that hydrogen can improve the formation of MoSe2 nanoflakes and significantly alter their properties due to the high reduction capacity of hydrogen and the creation of more nucleation centers of MoSe2 nanoflakes on the silicon surface. The study of photoluminescent (PL) properties reveals that the MoSe2 nanoflakes can generate a strong PL band at about 631 nm, differently from the plain MoSe2 nanoflakes. The major difference in the PL properties may be related to the edges of MoSe2 nanoflakes. These results can be used to control the growth and structure of MoSe2-based nanomaterials and contribute to the development of advanced MoSe2-based optoelectronic devices.
dc.description.peerreviewedYesen_US
dc.languageEnglishen_US
dc.publisherElsevier
dc.relation.ispartofpagefrom1
dc.relation.ispartofpageto9
dc.relation.ispartofjournalJournal of Crystal Growth
dc.relation.ispartofvolume475
dc.subject.fieldofresearchMacromolecular and Materials Chemistryen_US
dc.subject.fieldofresearchPhysical Chemistry (incl. Structural)en_US
dc.subject.fieldofresearchMaterials Engineeringen_US
dc.subject.fieldofresearchcode0303en_US
dc.subject.fieldofresearchcode0306en_US
dc.subject.fieldofresearchcode0912en_US
dc.subject.keywordsScience & Technologyen_US
dc.subject.keywordsPhysical Sciencesen_US
dc.subject.keywordsCrystallographyen_US
dc.subject.keywordsMaterials Science, Multidisciplinaryen_US
dc.titleEffects of hydrogen on the structural and optical properties of MoSe2 grown by hot filament chemical vapor deposition
dc.typeJournal article
dc.type.descriptionC1 - Articles
dcterms.bibliographicCitationWang, BB; Zhu, MK; Levchenko, I; Zheng, K; Gao, B; Xu, S; Ostrikov, K, Effects of hydrogen on the structural and optical properties of MoSe2 grown by hot filament chemical vapor deposition, Journal of Crystal Growth, 2017, 475, pp. 1-9
dcterms.licensehttp://creativecommons.org/licenses/by/4.0/en_US
dc.date.updated2021-02-11T03:14:05Z
dc.description.versionAccepted Manuscript (AM)en_US
gro.rights.copyright© 2017 Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence (http://creativecommons.org/licenses/by-nc-nd/4.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, providing that the work is properly cited.en_US
gro.hasfulltextFull Text
gro.griffith.authorOstrikov, Kostya (Ken)


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