Optical Spectrum of MoS2: Many-Body Effects and Diversity of Exciton States

Diana Y. Qiu, Felipe H. da Jornada, and Steven G. Louie
Phys. Rev. Lett. 111, 216805 – Published 20 November 2013; Erratum Phys. Rev. Lett. 115, 119901 (2015)
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Abstract

We present first-principles calculations of the optical response of monolayer molybdenum disulfide employing the GW-Bethe-Salpeter equation (GW-BSE) approach including self-energy, excitonic, and electron-phonon effects. We show that monolayer MoS2 possesses a large and diverse number of strongly bound excitonic states with novel k-space characteristics that were not previously seen experimentally or theoretically. The absorption spectrum is shown to be dominated by excitonic states with a binding energy close to 1 eV and by strong electron-phonon broadening in the visible to ultraviolet range. Our results explain recent experimental measurements and resolve inconsistencies between previous GW-BSE calculations.

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  • Received 5 July 2013

DOI:https://doi.org/10.1103/PhysRevLett.111.216805

© 2013 American Physical Society

Erratum

Erratum: Optical Spectrum of MoS2: Many-Body Effects and Diversity of Exciton States [Phys. Rev. Lett. 111, 216805 (2013)]

Diana Y. Qiu, Felipe H. da Jornada, and Steven G. Louie
Phys. Rev. Lett. 115, 119901 (2015)

Authors & Affiliations

Diana Y. Qiu, Felipe H. da Jornada, and Steven G. Louie*

  • Department of Physics, University of California at Berkeley, California 94720, USA and Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA

  • *sglouie@berkeley.edu

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Issue

Vol. 111, Iss. 21 — 22 November 2013

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