Monolayered MoSe2: A candidate for room temperature polaritonics

N. Lundt, A. Maryński, E. Cherotchenko, A. Pant, X. Fan, Sefaattin Tongay, G. Sek, A. V. Kavokin, S. Höfling, C. Schneider

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Monolayered MoSe2 is a promising new material to investigate advanced light-matter coupling as it hosts stable and robust excitons with comparably narrow optical resonances. In this work, we investigate the evolution of the lowest lying excitonic transition, the so-called A-valley exciton, with temperature. We find a strong, phonon-induced temperature broadening of the resonance, and more importantly, a reduction of the oscillator strength for increased temperatures, which we describe in the framework of a microscopic model. Based on these experimentally extracted, temperature dependent parameters, we apply a coupled oscillator model to elucidate the possibility to observe the strong coupling regime between the A-exciton and a microcavity resonance in three prototypical photonic architectures with varying mode volumes. We find that the formation of exciton-polaritons up to ambient conditions in compact, monolithic dielectric and Tamm-based structures seems feasible. In contrast, a temperature-induced transition into the weak coupling regime can be expected for structures with extended effective cavity length. Based on these findings, we calculate and draw the phase diagram of polariton Bosonic condensation in a microcavity with embedded MoSe2 monolayers.

Original languageEnglish (US)
Article number015006
Journal2D Materials
Volume4
Issue number1
DOIs
StatePublished - Mar 1 2017

Fingerprint

Excitons
excitons
room temperature
Microcavities
polaritons
Temperature
temperature
optical resonance
Electron transitions
oscillator strengths
Photonics
Phase diagrams
valleys
Condensation
Monolayers
condensation
oscillators
phase diagrams
photonics
cavities

Keywords

  • 2D materials
  • Exciton-polaritons
  • Microcavity
  • MoSe
  • Strong coupling
  • Transition metal dichalcogenides

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Lundt, N., Maryński, A., Cherotchenko, E., Pant, A., Fan, X., Tongay, S., ... Schneider, C. (2017). Monolayered MoSe2: A candidate for room temperature polaritonics. 2D Materials, 4(1), [015006]. https://doi.org/10.1088/2053-1583/4/1/015006

Monolayered MoSe2 : A candidate for room temperature polaritonics. / Lundt, N.; Maryński, A.; Cherotchenko, E.; Pant, A.; Fan, X.; Tongay, Sefaattin; Sek, G.; Kavokin, A. V.; Höfling, S.; Schneider, C.

In: 2D Materials, Vol. 4, No. 1, 015006, 01.03.2017.

Research output: Contribution to journalArticle

Lundt, N, Maryński, A, Cherotchenko, E, Pant, A, Fan, X, Tongay, S, Sek, G, Kavokin, AV, Höfling, S & Schneider, C 2017, 'Monolayered MoSe2: A candidate for room temperature polaritonics', 2D Materials, vol. 4, no. 1, 015006. https://doi.org/10.1088/2053-1583/4/1/015006
Lundt N, Maryński A, Cherotchenko E, Pant A, Fan X, Tongay S et al. Monolayered MoSe2: A candidate for room temperature polaritonics. 2D Materials. 2017 Mar 1;4(1). 015006. https://doi.org/10.1088/2053-1583/4/1/015006
Lundt, N. ; Maryński, A. ; Cherotchenko, E. ; Pant, A. ; Fan, X. ; Tongay, Sefaattin ; Sek, G. ; Kavokin, A. V. ; Höfling, S. ; Schneider, C. / Monolayered MoSe2 : A candidate for room temperature polaritonics. In: 2D Materials. 2017 ; Vol. 4, No. 1.
@article{3d33cbe8b703405a8e8e0c94ed486e6c,
title = "Monolayered MoSe2: A candidate for room temperature polaritonics",
abstract = "Monolayered MoSe2 is a promising new material to investigate advanced light-matter coupling as it hosts stable and robust excitons with comparably narrow optical resonances. In this work, we investigate the evolution of the lowest lying excitonic transition, the so-called A-valley exciton, with temperature. We find a strong, phonon-induced temperature broadening of the resonance, and more importantly, a reduction of the oscillator strength for increased temperatures, which we describe in the framework of a microscopic model. Based on these experimentally extracted, temperature dependent parameters, we apply a coupled oscillator model to elucidate the possibility to observe the strong coupling regime between the A-exciton and a microcavity resonance in three prototypical photonic architectures with varying mode volumes. We find that the formation of exciton-polaritons up to ambient conditions in compact, monolithic dielectric and Tamm-based structures seems feasible. In contrast, a temperature-induced transition into the weak coupling regime can be expected for structures with extended effective cavity length. Based on these findings, we calculate and draw the phase diagram of polariton Bosonic condensation in a microcavity with embedded MoSe2 monolayers.",
keywords = "2D materials, Exciton-polaritons, Microcavity, MoSe, Strong coupling, Transition metal dichalcogenides",
author = "N. Lundt and A. Maryński and E. Cherotchenko and A. Pant and X. Fan and Sefaattin Tongay and G. Sek and Kavokin, {A. V.} and S. H{\"o}fling and C. Schneider",
year = "2017",
month = "3",
day = "1",
doi = "10.1088/2053-1583/4/1/015006",
language = "English (US)",
volume = "4",
journal = "2D Materials",
issn = "2053-1583",
publisher = "IOP Publishing Ltd.",
number = "1",

}

TY - JOUR

T1 - Monolayered MoSe2

T2 - A candidate for room temperature polaritonics

AU - Lundt, N.

AU - Maryński, A.

AU - Cherotchenko, E.

AU - Pant, A.

AU - Fan, X.

AU - Tongay, Sefaattin

AU - Sek, G.

AU - Kavokin, A. V.

AU - Höfling, S.

AU - Schneider, C.

PY - 2017/3/1

Y1 - 2017/3/1

N2 - Monolayered MoSe2 is a promising new material to investigate advanced light-matter coupling as it hosts stable and robust excitons with comparably narrow optical resonances. In this work, we investigate the evolution of the lowest lying excitonic transition, the so-called A-valley exciton, with temperature. We find a strong, phonon-induced temperature broadening of the resonance, and more importantly, a reduction of the oscillator strength for increased temperatures, which we describe in the framework of a microscopic model. Based on these experimentally extracted, temperature dependent parameters, we apply a coupled oscillator model to elucidate the possibility to observe the strong coupling regime between the A-exciton and a microcavity resonance in three prototypical photonic architectures with varying mode volumes. We find that the formation of exciton-polaritons up to ambient conditions in compact, monolithic dielectric and Tamm-based structures seems feasible. In contrast, a temperature-induced transition into the weak coupling regime can be expected for structures with extended effective cavity length. Based on these findings, we calculate and draw the phase diagram of polariton Bosonic condensation in a microcavity with embedded MoSe2 monolayers.

AB - Monolayered MoSe2 is a promising new material to investigate advanced light-matter coupling as it hosts stable and robust excitons with comparably narrow optical resonances. In this work, we investigate the evolution of the lowest lying excitonic transition, the so-called A-valley exciton, with temperature. We find a strong, phonon-induced temperature broadening of the resonance, and more importantly, a reduction of the oscillator strength for increased temperatures, which we describe in the framework of a microscopic model. Based on these experimentally extracted, temperature dependent parameters, we apply a coupled oscillator model to elucidate the possibility to observe the strong coupling regime between the A-exciton and a microcavity resonance in three prototypical photonic architectures with varying mode volumes. We find that the formation of exciton-polaritons up to ambient conditions in compact, monolithic dielectric and Tamm-based structures seems feasible. In contrast, a temperature-induced transition into the weak coupling regime can be expected for structures with extended effective cavity length. Based on these findings, we calculate and draw the phase diagram of polariton Bosonic condensation in a microcavity with embedded MoSe2 monolayers.

KW - 2D materials

KW - Exciton-polaritons

KW - Microcavity

KW - MoSe

KW - Strong coupling

KW - Transition metal dichalcogenides

UR - http://www.scopus.com/inward/record.url?scp=85010956997&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85010956997&partnerID=8YFLogxK

U2 - 10.1088/2053-1583/4/1/015006

DO - 10.1088/2053-1583/4/1/015006

M3 - Article

AN - SCOPUS:85010956997

VL - 4

JO - 2D Materials

JF - 2D Materials

SN - 2053-1583

IS - 1

M1 - 015006

ER -