Optoelectronics of transition metal dichalcogenides decorated with gold nanoparticles

ORAL

Abstract

We report on Raman and photoluminescence experiments on monolayers (ML) of $MoS_2$ and $WSe_2$, covered with octanethiole stabilized gold nanoparticle arrays. We observe an enhanced photoluminescence signal due to the decoration with gold nanoparticle arrays. Power-dependent Raman scattering experiments show a decrease of the normalized Raman intensity of the $A_{1g}$ and $E_{2g}^1$ phonon mode for gold nanoparticle decorated MLs.

*We acknowledge financial support by the ERC project NanoREAL.

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Authors

  • S.B. Diefenbach

    • WSI and Physics Department, TUM, 85748 Garching, Germany

  • E. Parzinger

    • WSI and Physics Department, TUM, 85748 Garching, Germany

  • J. Kiemle

    • WSI and Physics Department, TUM, 85748 Garching, Germany

  • B. Miller

    • WSI and Physics Department, TUM, 85748 Garching, Germany

  • J. Wierzbowski

    • WSI and Physics Department, TUM, 85748 Garching, Germany

  • R. Csiki

    • WSI and Physics Department, TUM, 85748 Garching, Germany

  • A. Cattani-Scholz

    • WSI and Physics Department, TUM, 85748 Garching, Germany

  • M. Stutzmann

    • WSI and Physics Department, TUM, 85748 Garching, Germany

  • J.J. Finley

    • WSI and Physics Department, TUM, 85748 Garching, Germany

  • U. Wurstbauer

    • WSI and Physics Department, TUM, 85748 Garching, Germany

  • A.W. Holleitner

    • WSI and Physics Department, TUM, 85748 Garching, Germany