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Showing 1–3 of 3 results
Advanced filters: Author: Li-Syuan Lu Clear advanced filters

  • Monolayer transition metal dichalcogenides have so far been thought to be direct bandgap semiconductors. Here, the authors revisit this assumption and find that unstrained monolayer WSe2 is an indirect-gap material, as evidenced by the observed photoluminescence intensity-energy correlation.

    • Wei-Ting Hsu
    • Li-Syuan Lu
    • Wen-Hao Chang
    ResearchOpen Access
    Nature Communications
    Volume: 8, P: 1-7

  • The interlayer coupling in van der Waals heterostructures is sensitive to the interlayer atomic registry. Here, the authors investigate the polarisation properties of epitaxially grown, commensurate WSe2/MoSe2 heterobilayers with well-defined atomic registry, and observe negative, circularly polarized photoluminescence from interlayer excitons.

    • Wei-Ting Hsu
    • Li-Syuan Lu
    • Wen-Hao Chang
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-7