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Growth of ‘W’ doped molybdenum disulfide on graphene transferred molybdenum substrate

In the present study, a novel method has been carried out to grow tungsten (W) doped molybdenum disulfide (MoS(2)) on the graphene transferred TEM grid in a chemical vapor deposition (CVD) setup. Tungsten trioxide (WO(3)) has been used as a source for ‘W’ while ‘Mo’ has been derived from Mo based su...

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Autores principales: Asokan, Vijayshankar, Zhu, Dancheng, Huang, Wei, Wang, Hulian, Gao, Wandong, Zhang, Ze, Jin, Chuanhong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5943342/
https://www.ncbi.nlm.nih.gov/pubmed/29743558
http://dx.doi.org/10.1038/s41598-018-25796-9
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author Asokan, Vijayshankar
Zhu, Dancheng
Huang, Wei
Wang, Hulian
Gao, Wandong
Zhang, Ze
Jin, Chuanhong
author_facet Asokan, Vijayshankar
Zhu, Dancheng
Huang, Wei
Wang, Hulian
Gao, Wandong
Zhang, Ze
Jin, Chuanhong
author_sort Asokan, Vijayshankar
collection PubMed
description In the present study, a novel method has been carried out to grow tungsten (W) doped molybdenum disulfide (MoS(2)) on the graphene transferred TEM grid in a chemical vapor deposition (CVD) setup. Tungsten trioxide (WO(3)) has been used as a source for ‘W’ while ‘Mo’ has been derived from Mo based substrate. Different experimental parameters were used in this experiment. Higher gas flow rate decreases the size of the sample flake and on other side increases the dopant concentrations. The interaction mechanism between Mo, S, W and oxygen (O) have been explored. The influence of oxygen seems to be not avoidable completely which also imposes effective growth condition for the reaction of Mo with incoming sulfur atoms. The difference in the migration energies of Mo, WO(3), S clusters on the graphene and the higher reactivity of Mo clusters over other possibly formed atomic clusters on the graphene leads to the growth of W doped MoS(2) monolayers. Formation of MoS(2) monolayer and the nature of edge doping of ‘W’ is explained well with the crystal model using underlying nucleation principles. We believe our result provide a special route to prepare W doped MoS(2) on graphene substrate in the future.
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spelling pubmed-59433422018-05-14 Growth of ‘W’ doped molybdenum disulfide on graphene transferred molybdenum substrate Asokan, Vijayshankar Zhu, Dancheng Huang, Wei Wang, Hulian Gao, Wandong Zhang, Ze Jin, Chuanhong Sci Rep Article In the present study, a novel method has been carried out to grow tungsten (W) doped molybdenum disulfide (MoS(2)) on the graphene transferred TEM grid in a chemical vapor deposition (CVD) setup. Tungsten trioxide (WO(3)) has been used as a source for ‘W’ while ‘Mo’ has been derived from Mo based substrate. Different experimental parameters were used in this experiment. Higher gas flow rate decreases the size of the sample flake and on other side increases the dopant concentrations. The interaction mechanism between Mo, S, W and oxygen (O) have been explored. The influence of oxygen seems to be not avoidable completely which also imposes effective growth condition for the reaction of Mo with incoming sulfur atoms. The difference in the migration energies of Mo, WO(3), S clusters on the graphene and the higher reactivity of Mo clusters over other possibly formed atomic clusters on the graphene leads to the growth of W doped MoS(2) monolayers. Formation of MoS(2) monolayer and the nature of edge doping of ‘W’ is explained well with the crystal model using underlying nucleation principles. We believe our result provide a special route to prepare W doped MoS(2) on graphene substrate in the future. Nature Publishing Group UK 2018-05-09 /pmc/articles/PMC5943342/ /pubmed/29743558 http://dx.doi.org/10.1038/s41598-018-25796-9 Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Asokan, Vijayshankar
Zhu, Dancheng
Huang, Wei
Wang, Hulian
Gao, Wandong
Zhang, Ze
Jin, Chuanhong
Growth of ‘W’ doped molybdenum disulfide on graphene transferred molybdenum substrate
title Growth of ‘W’ doped molybdenum disulfide on graphene transferred molybdenum substrate
title_full Growth of ‘W’ doped molybdenum disulfide on graphene transferred molybdenum substrate
title_fullStr Growth of ‘W’ doped molybdenum disulfide on graphene transferred molybdenum substrate
title_full_unstemmed Growth of ‘W’ doped molybdenum disulfide on graphene transferred molybdenum substrate
title_short Growth of ‘W’ doped molybdenum disulfide on graphene transferred molybdenum substrate
title_sort growth of ‘w’ doped molybdenum disulfide on graphene transferred molybdenum substrate
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5943342/
https://www.ncbi.nlm.nih.gov/pubmed/29743558
http://dx.doi.org/10.1038/s41598-018-25796-9
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