Large Area Growth and Characterization of Monolayer MoS$_{2}$

ORAL

Abstract

Two-dimensional transition metal dichalcogenides have garnered extensive attention due to their direct band gap with great potential in semiconductor application complementing graphene. While most of the experiments were carried out on either exfoliated films or CVD grown crystals, sample size are restricted in hundreds of micrometers. Synthesis of large-area samples were less successful. Here, we report the growth of cm$^{2}$-scale molybdenum disulfide (MoS$_{2})$ monolayer with a facile method by sulfurizing molybdenum trioxide film on sapphire substrates. Uniformity and quality of the monolayer films were verified by Raman, PL mapping and PL efficiency. A quasi- molten phase of the precursor in the initial stage of the reaction is found to be crucial for the monolayer growth.

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Authors

  • Payam Taheri

    • State Univ of NY - Buffalo
    • Department of Physics, The State University of New York at Buffalo
    • Physics Department, The State University of New York at Buffalo

  • Jieqiong Wang

    • Department of Materials Science, Xian Jiaotong University, China

  • Hui Xing

    • Department of Physics, The State University of New York at Buffalo
    • Physics Department, The State University of New York at Buffalo

  • Joel Destino

    • Chemistry Department, The State University of New York at Buffalo

  • Thomas Scrace

    • SUNY Buffalo
    • SUNY at Buffalo
    • Physics Department, The State University of New York at Buffalo

  • Yutsung Tsai

    • SUNY Buffalo
    • SUNY at Buffalo
    • Physics Department, The State University of New York at Buffalo

  • Frank Bright

    • Chemistry Department, The State University of New York at Buffalo

  • Athos Petrou

    • SUNY Buffalo
    • SUNY at Buffalo
    • Physics Department, The State University of New York at Buffalo

  • Hao Zeng

    • State Univ of NY - Buffalo
    • Department of Physics, The State University of New York at Buffalo
    • Physics Department, The State University of New York at Buffalo