Growth mechanism of largescale MoS2 monolayer by sulfurization of MoO3 film

Payam Taheri, Jieqiong Wang, Hui Xing, Joel F. Destino, Mumtaz Murat Arik, Chuan Zhao, Kaifei Kang, Brett Blizzard, Lijie Zhang, Puqin Zhao, Shaoming Huang, Sen Yang, Frank V. Bright, John Cerne, Hao Zeng

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Monolayer two-dimensional transition metal dichalcogenides (TMDCs) such as MoS2 with broken inversion symmetry possesses two degenerate yet inequivalent valleys that can be selectively excited by circularly polarized light. This unique property renders interesting valley physics. The ability to manipulate valley degrees of freedom with light or external field makes them attractive for optoelectronic and spintronic applications. There is great demand for large area monolayer (ML) TMDCs for certain measurements and device applications. Recent reports on large area MLTDMCs focus on chemical vapor deposition growth. In this work, we report a facile approach to grow largescale continuousMLMoS2 nearly free of overgrowth and voids, by sulfurizing evaporated molybdenum trioxide ultrathin films. Photo conductivity scales with device sizes up to 4.5 mm, suggesting excellent film uniformity. The growth mechanism is found to be vaporization, diffusion, sulfurization and lateral growth, all at local micrometer scale. Our approach provides a new pathway for large-area MLTMDC growth and lithography-free device fabrication.

Original languageEnglish (US)
Article number075009
JournalMaterials Research Express
Volume3
Issue number7
DOIs
StatePublished - Jul 1 2016
Externally publishedYes

Fingerprint

Monolayers
Transition metals
Magnetoelectronics
Ultrathin films
Light polarization
Vaporization
Optoelectronic devices
Lithography
Molybdenum
Chemical vapor deposition
Physics
Fabrication
molybdenum trioxide

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Metals and Alloys

Cite this

Growth mechanism of largescale MoS2 monolayer by sulfurization of MoO3 film. / Taheri, Payam; Wang, Jieqiong; Xing, Hui; Destino, Joel F.; Arik, Mumtaz Murat; Zhao, Chuan; Kang, Kaifei; Blizzard, Brett; Zhang, Lijie; Zhao, Puqin; Huang, Shaoming; Yang, Sen; Bright, Frank V.; Cerne, John; Zeng, Hao.

In: Materials Research Express, Vol. 3, No. 7, 075009, 01.07.2016.

Research output: Contribution to journalArticle

Taheri, P, Wang, J, Xing, H, Destino, JF, Arik, MM, Zhao, C, Kang, K, Blizzard, B, Zhang, L, Zhao, P, Huang, S, Yang, S, Bright, FV, Cerne, J & Zeng, H 2016, 'Growth mechanism of largescale MoS2 monolayer by sulfurization of MoO3 film', Materials Research Express, vol. 3, no. 7, 075009. https://doi.org/10.1088/2053-1591/3/7/075009
Taheri, Payam ; Wang, Jieqiong ; Xing, Hui ; Destino, Joel F. ; Arik, Mumtaz Murat ; Zhao, Chuan ; Kang, Kaifei ; Blizzard, Brett ; Zhang, Lijie ; Zhao, Puqin ; Huang, Shaoming ; Yang, Sen ; Bright, Frank V. ; Cerne, John ; Zeng, Hao. / Growth mechanism of largescale MoS2 monolayer by sulfurization of MoO3 film. In: Materials Research Express. 2016 ; Vol. 3, No. 7.
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