Manganese Doping of Monolayer MoS 2: The Substrate Is Critical

Kehao Zhang, Simin Feng, Junjie Wang, Angelica Azcatl, Ning Lu, Rafik Addou, Nan Wang, Chanjing Zhou, Jordan Oswald Lerach, Vincent Bojan, Moon J. Kim, Long-qing Chen, Robert M. Wallace, Mauricio Terrones Maldonado, Jun Zhu, Joshua Alexander Robinson

Research output: Contribution to journalArticle

171 Citations (Scopus)

Abstract

Substitutional doping of transition metal dichalcogenides (TMDs) may provide routes to achieving tunable p-n junctions, bandgaps, chemical sensitivity, and magnetism in these materials. In this study, we demonstrate in situ doping of monolayer molybdenum disulfide (MoS 2 ) with manganese (Mn) via vapor phase deposition techniques. Successful incorporation of Mn in MoS 2 leads to modifications of the band structure as evidenced by photoluminescence and X-ray photoelectron spectroscopy, but this is heavily dependent on the choice of substrate. We show that inert substrates (i.e., graphene) permit the incorporation of several percent Mn in MoS 2 , while substrates with reactive surface terminations (i.e., SiO 2 and sapphire) preclude Mn incorporation and merely lead to defective MoS 2 . The results presented here demonstrate that tailoring the substrate surface could be the most significant factor in substitutional doping of TMDs with non-TMD elements.

Original languageEnglish (US)
Pages (from-to)6586-6591
Number of pages6
JournalNano letters
Volume15
Issue number10
DOIs
StatePublished - Oct 14 2015

Fingerprint

Manganese
manganese
Monolayers
Doping (additives)
Substrates
Transition metals
transition metals
molybdenum disulfides
Graphite
Aluminum Oxide
Magnetism
p-n junctions
Sapphire
Chemical elements
Band structure
Graphene
Molybdenum
Photoluminescence
graphene
sapphire

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

Cite this

Zhang, Kehao ; Feng, Simin ; Wang, Junjie ; Azcatl, Angelica ; Lu, Ning ; Addou, Rafik ; Wang, Nan ; Zhou, Chanjing ; Lerach, Jordan Oswald ; Bojan, Vincent ; Kim, Moon J. ; Chen, Long-qing ; Wallace, Robert M. ; Terrones Maldonado, Mauricio ; Zhu, Jun ; Robinson, Joshua Alexander. / Manganese Doping of Monolayer MoS 2 : The Substrate Is Critical. In: Nano letters. 2015 ; Vol. 15, No. 10. pp. 6586-6591.
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Zhang, K, Feng, S, Wang, J, Azcatl, A, Lu, N, Addou, R, Wang, N, Zhou, C, Lerach, JO, Bojan, V, Kim, MJ, Chen, L, Wallace, RM, Terrones Maldonado, M, Zhu, J & Robinson, JA 2015, 'Manganese Doping of Monolayer MoS 2: The Substrate Is Critical', Nano letters, vol. 15, no. 10, pp. 6586-6591. https://doi.org/10.1021/acs.nanolett.5b02315

Manganese Doping of Monolayer MoS 2 : The Substrate Is Critical. / Zhang, Kehao; Feng, Simin; Wang, Junjie; Azcatl, Angelica; Lu, Ning; Addou, Rafik; Wang, Nan; Zhou, Chanjing; Lerach, Jordan Oswald; Bojan, Vincent; Kim, Moon J.; Chen, Long-qing; Wallace, Robert M.; Terrones Maldonado, Mauricio; Zhu, Jun; Robinson, Joshua Alexander.

In: Nano letters, Vol. 15, No. 10, 14.10.2015, p. 6586-6591.

Research output: Contribution to journalArticle

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AU - Zhang, Kehao

AU - Feng, Simin

AU - Wang, Junjie

AU - Azcatl, Angelica

AU - Lu, Ning

AU - Addou, Rafik

AU - Wang, Nan

AU - Zhou, Chanjing

AU - Lerach, Jordan Oswald

AU - Bojan, Vincent

AU - Kim, Moon J.

AU - Chen, Long-qing

AU - Wallace, Robert M.

AU - Terrones Maldonado, Mauricio

AU - Zhu, Jun

AU - Robinson, Joshua Alexander

PY - 2015/10/14

Y1 - 2015/10/14

N2 - Substitutional doping of transition metal dichalcogenides (TMDs) may provide routes to achieving tunable p-n junctions, bandgaps, chemical sensitivity, and magnetism in these materials. In this study, we demonstrate in situ doping of monolayer molybdenum disulfide (MoS 2 ) with manganese (Mn) via vapor phase deposition techniques. Successful incorporation of Mn in MoS 2 leads to modifications of the band structure as evidenced by photoluminescence and X-ray photoelectron spectroscopy, but this is heavily dependent on the choice of substrate. We show that inert substrates (i.e., graphene) permit the incorporation of several percent Mn in MoS 2 , while substrates with reactive surface terminations (i.e., SiO 2 and sapphire) preclude Mn incorporation and merely lead to defective MoS 2 . The results presented here demonstrate that tailoring the substrate surface could be the most significant factor in substitutional doping of TMDs with non-TMD elements.

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Zhang K, Feng S, Wang J, Azcatl A, Lu N, Addou R et al. Manganese Doping of Monolayer MoS 2: The Substrate Is Critical. Nano letters. 2015 Oct 14;15(10):6586-6591. https://doi.org/10.1021/acs.nanolett.5b02315