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

Abstract In the present study, a novel method has been carried out to grow tungsten (W) doped molybdenum disulfide (MoS2) on the graphene transferred TEM grid in a chemical vapor deposition (CVD) setup. Tungsten trioxide (WO3) has been used as a source for ‘W’ while ‘Mo’ has been derived from Mo bas...

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Autores principales:	Vijayshankar Asokan, Dancheng Zhu, Wei Huang, Hulian Wang, Wandong Gao, Ze Zhang, Chuanhong Jin
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/50f7347dfd154ee9b81dd15fadbc5c67
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spelling	oai:doaj.org-article:50f7347dfd154ee9b81dd15fadbc5c672021-12-02T11:40:36ZGrowth of ‘W’ doped molybdenum disulfide on graphene transferred molybdenum substrate10.1038/s41598-018-25796-92045-2322https://doaj.org/article/50f7347dfd154ee9b81dd15fadbc5c672018-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-25796-9https://doaj.org/toc/2045-2322Abstract In the present study, a novel method has been carried out to grow tungsten (W) doped molybdenum disulfide (MoS2) on the graphene transferred TEM grid in a chemical vapor deposition (CVD) setup. Tungsten trioxide (WO3) 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, WO3, 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 MoS2 monolayers. Formation of MoS2 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 MoS2 on graphene substrate in the future.Vijayshankar AsokanDancheng ZhuWei HuangHulian WangWandong GaoZe ZhangChuanhong JinNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-8 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Vijayshankar Asokan Dancheng Zhu Wei Huang Hulian Wang Wandong Gao Ze Zhang Chuanhong Jin Growth of ‘W’ doped molybdenum disulfide on graphene transferred molybdenum substrate
description	Abstract In the present study, a novel method has been carried out to grow tungsten (W) doped molybdenum disulfide (MoS2) on the graphene transferred TEM grid in a chemical vapor deposition (CVD) setup. Tungsten trioxide (WO3) 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, WO3, 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 MoS2 monolayers. Formation of MoS2 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 MoS2 on graphene substrate in the future.
format	article
author	Vijayshankar Asokan Dancheng Zhu Wei Huang Hulian Wang Wandong Gao Ze Zhang Chuanhong Jin
author_facet	Vijayshankar Asokan Dancheng Zhu Wei Huang Hulian Wang Wandong Gao Ze Zhang Chuanhong Jin
author_sort	Vijayshankar Asokan
title	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_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_sort	growth of ‘w’ doped molybdenum disulfide on graphene transferred molybdenum substrate
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/50f7347dfd154ee9b81dd15fadbc5c67
work_keys_str_mv	AT vijayshankarasokan growthofwdopedmolybdenumdisulfideongraphenetransferredmolybdenumsubstrate AT danchengzhu growthofwdopedmolybdenumdisulfideongraphenetransferredmolybdenumsubstrate AT weihuang growthofwdopedmolybdenumdisulfideongraphenetransferredmolybdenumsubstrate AT hulianwang growthofwdopedmolybdenumdisulfideongraphenetransferredmolybdenumsubstrate AT wandonggao growthofwdopedmolybdenumdisulfideongraphenetransferredmolybdenumsubstrate AT zezhang growthofwdopedmolybdenumdisulfideongraphenetransferredmolybdenumsubstrate AT chuanhongjin growthofwdopedmolybdenumdisulfideongraphenetransferredmolybdenumsubstrate
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Growth of ‘W’ doped molybdenum disulfide on graphene transferred molybdenum substrate

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