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Photon bunching of interlayer exciton electroluminescence in atomically thin semiconductor heterostructures

ORAL

Abstract

Atomically thin semiconductor heterostructures are an ideal system for exploring strong light-matter interactions in the 2D limit. When electrons and holes are individually injected into these materials, they can bind to form interlayer excitons that emit light when they recombine. In this work, we study the electroluminescence of interlayer excitons in MoSe2/WSe2-based heterostructures under a forward bias. In particular, we performed measurements of the second order correlation function and observed photon bunching for a range of bias voltages. We discuss the origin of this bunched electroluminescence and what it elucidates about the quantum state of the interlayer excitons.

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Presenters

  • Andres M Mier Valdivia

    Harvard University

Authors

  • Andres M Mier Valdivia

    Harvard University

  • Nadine Leisgang

    Harvard University

  • Andrew Joe

    University of California Berkeley

  • Dapeng Ding

    Harvard University

  • Jue Wang

    Harvard University

  • Daniel Rhodes

    University of Wisconsin - Madison

  • Bumho Kim

    University of Pennsylvania

  • Song Liu

    Columbia University

  • Kenji Watanabe

    National Institute for Materials Science, Research Center for Functional Materials, National Institute of Materials Science, Research Center for Functional Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-044, Japan, NIMS, Research Center for Functional Materials, National Institute for Materials Science, National Institute for Materials Science, Japan, Research Center for Functional Materials, National Institute for Materials Science, Tsukuba, Japan, NIMS Japan

  • Takashi Taniguchi

    National Institute for Materials Science, Kyoto Univ, International Center for Materials Nanoarchitectonics, National Institute of Materials Science, Kyoto University, International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-044, Japan, International Center for Materials Nanoarchitectonics, National Institute for Materials Science, National Institute for Materials Science, Japan, National Institute For Materials Science, NIMS, National Institute for Material Science, International Center for Materials Nanoarchitectonics, National Institute for Materials Science, Tsukuba, Japan, NIMS Japan

  • James C Hone

    Columbia University

  • Mikhail D Lukin

    Harvard University

  • Hongkun Park

    Harvard University

  • Philip Kim

    Harvard University